5 B9 H U C; h+ q' e 从给定的对象创建一个新的字符串对象。如果编码或,则对象必须公开数据缓冲区9 u8 u+ l L4 o* s* `/ \- e7 Q
将使用给定的编码和错误处理程序进行解码。 1 f. Z; i# M# U `* j1 o3 y # G( {2 n/ U8 d( P1 R3 @
否则,返回object.__str__()的结果(如果已定义)或repr(对象)。 * u" R& M$ `1 M - b, d8 ]6 t1 k 编码默认为sys.getdefaultencoding()。 - Z9 N3 t2 u+ @# |! L $ N" w2 ]- P9 i- L) e
Errors默认为'strict'。( Q# m& s2 g, G# E0 b$ O
""" ' _) d* O* o0 s( N: C. F- o: T: c. F p def capitalize(self, *args, **kwargs): # real signature unknown 7 l( p4 w" B3 P( c4 X """4 |! D" ~/ h8 |+ |1 S% ~* ?
Return a capitalized version of the string. + H6 j9 P7 O/ _0 u7 M. p. {5 u! \- ^$ S7 ^- J9 T
More specifically, make the first character have upper case and the rest lower/ r) t2 ]# C0 ]9 @
case. 7 o" @$ O4 r& z( n, Y/ \ """: m r b3 b0 {& j
pass+ }; d. Z+ b$ a S
. z) c% Z* k2 o, p( R" r7 I
def casefold(self, *args, **kwargs): # real signature unknown7 o- |6 Y R: ^/ P" [
""" Return a version of the string suitable for caseless comparisons. """8 m8 [2 z9 \ r1 E
pass* Q0 p1 b" u2 O! i
/ N. e5 X; a4 K( I o1 I0 T def center(self, *args, **kwargs): # real signature unknown 3 k5 Q Y# R4 j/ _9 l """ " G$ V" K# Q. a 返回一个居中长度为width的字符串。 " d9 [' A6 d h ^) S: L8 W+ T, x. V# y' Z0 g
使用指定的填充字符(默认为空格)填充。 3 R1 b- m" L: A1 Q """ / w8 ^* r# U. q: E) a pass! ^2 T( ]/ ? z; B& F9 ]4 n9 e+ K5 I/ Y
) a2 c7 c: X. _, z+ N1 e' I# h$ d
def count(self, sub, start=None, end=None): # real signature unknown; restored from __doc__ * r; R6 b7 C* f* _! q9 L, W """/ D" R7 _2 `6 }2 G' g
S.count(sub[, start[, end]]) -> 0 K& } T" e$ x+ Z4 M2 D0 G0 Y- [: f5 g# |6 J$ k2 [) s
int .count(sub[, start[, end]]返回子字符串sub in不重叠出现的次数! Z6 Y9 L9 d7 j" W% U
" X' u* ^0 |6 i# U. S* C4 y& a 字符串(开始:结束)。可选参数start和end是用切片表示法解释。! G0 _2 K, y; P9 Q& _' s
""" . V8 N3 m) Z% Y, v. L5 H1 t return 01 T& t. n$ ]$ p4 q1 f1 p- n
: }1 l) i* Q% a: f' C def encode(self, *args, **kwargs): # real signature unknown 0 C7 Q4 _' G W$ q' B: u """7 t$ Z4 J" v, |0 V0 N3 D0 K8 a
Encode the string using the codec registered for encoding.1 B) X/ ~( r9 C U1 B5 R3 @0 y
h/ Z% F) p* \: `% X* x
encoding1 y4 t2 f! S* D6 B
The encoding in which to encode the string.- t/ ~1 R4 a( ?! W- ]
errors 8 ?4 i# C' W6 ^# y1 I The error handling scheme to use for encoding errors.* a3 \7 L0 w# a: q+ ^7 A, S
The default is 'strict' meaning that encoding errors raise a : _& d" h$ F: H$ i UnicodeEncodeError. Other possible values are 'ignore', 'replace' and ! w2 W. \$ V$ T# E+ a 'xmlcharrefreplace' as well as any other name registered with4 |! D$ i! w# n! Y, o) s8 r
codecs.register_error that can handle UnicodeEncodeErrors. $ G+ U& C- }% i1 b ; O; e1 K+ u4 z 使用注册用于编码的编解码器对字符串进行编码。: V$ C8 d# {" [) |2 {
) O6 b0 ]1 R, K
编码 % e$ l: ]1 E/ O" U5 C* C 用于编码字符串的编码方式。$ Z' G4 V4 {! T' p8 m) q
错误 $ p' u7 Q0 N/ u7 O- T 用于编码错误的错误处理方案。 E |9 v) ^, H; R2 _
默认值是'strict',意味着编码错误会引发UnicodeEncodeError。2 N6 d$ }( R2 K6 X2 O
其他可能的值有'ignore', 'replace'和'xmlcharrefreplace'以及注册的任何其他名称编解码器。 % a6 s+ \- t) S5 k 可以处理UnicodeEncodeErrors的register_error。 $ _& r7 _' }* ^* @* A" f& i """ : a5 v( ~6 Z$ E2 D pass 5 N' u8 O8 h0 k& I# w- l2 s2 Z2 @# H6 g. G R. `/ \* H% _
def endswith(self, suffix, start=None, end=None): # real signature unknown; restored from __doc__ 2 N5 Y& z& Z1 Y# g" O" ], | """ : \) q6 N# `0 c: u* a S.endswith(suffix[, start[, end]]) -> bool/ B0 \ ?6 X) n1 u; F0 b! g$ G
% l$ G; X% Y/ ~) s5 Y
Return True if S ends with the specified suffix, False otherwise. ~3 x, b3 N6 e1 A With optional start, test S beginning at that position.2 s; h5 Q4 u+ v" M6 c1 F
With optional end, stop comparing S at that position. 9 X: \; l0 R" j: i3 _) n1 Q2 s suffix can also be a tuple of strings to try. + i: c* `1 V; ~" ]7 N """; ]9 R) ]3 N6 i8 c
return False 3 h+ ]( X3 E) X: V1 r A % M8 w$ z2 V* f. v7 Z def expandtabs(self, *args, **kwargs): # real signature unknown5 w) {0 v! ~6 c/ ]7 w& d
"""/ s8 U4 O2 ~# r* ^/ x, o
Return a copy where all tab characters are expanded using spaces.& P+ n1 \5 o9 I0 |1 v1 ^, b) d
2 w9 f, x/ g# `+ r; c V! k If tabsize is not given, a tab size of 8 characters is assumed.2 D% g1 b; y& j+ g
""" o2 [: `5 [! H O w& b; e/ D2 J pass : F! K9 V% i4 b( t# w) d 9 E1 L! P8 o0 B/ }% s R% `, c4 R* S4 a def find(self, sub, start=None, end=None): # real signature unknown; restored from __doc__! G4 a y; _* v6 j
""" ( w& I5 u; I# C+ r- ~5 b& a! s0 r S.find(sub[, start[, end]]) -> int0 c6 b- L) g- D/ h& G4 X6 k
+ c! l& n$ |2 ?
Return the lowest index in S where substring sub is found,5 ]5 D! v, I, V+ t' f, o
such that sub is contained within S[start:end]. Optional : s$ M! M3 d8 l. B4 T+ q i arguments start and end are interpreted as in slice notation. 5 X3 ]6 u* }6 \. M6 `; ^% o; i+ Y5 W, Y9 M$ |9 f1 O
Return -1 on failure.8 J; N s3 @0 o. B% s, M4 O' Z7 d
! ?: `& f9 _# F0 \6 s 返回S中找到子串sub的最低下标,这样,sub包含在S[start:end]中。" V. I* V" |- {0 J, N( ]: ` h
可选参数start和end被解释为切片表示法。1 L. {* _8 Q+ Q9 i! H( z5 }
4 ]9 [- Y1 I6 ^ 失败时返回-1。 9 P, Q! n9 e, c2 t7 D2 Z6 J0 F ) w8 c8 F$ u1 @ U. Q """ 7 N: G& Q2 J. L5 `5 u; W. H, _/ b return 0 + R3 L' w& f: W0 F6 ] v9 U2 b4 D* e% ^4 h
def format(self, *args, **kwargs): # known special case of str.format& F0 P. B* C! v7 B3 l b
""" & s/ f5 T% S2 i$ L S.format(*args, **kwargs) -> str s' U3 S9 j% ~
4 {* q* t+ p# k' l/ x8 f$ G Return a formatted version of S, using substitutions from args and kwargs." N; [8 q8 p! J, a! f( \
The substitutions are identified by braces ('{' and '}').8 n; X+ i, H: `" r' a
# K9 t) i7 I6 g3 V) _% b
S.format(*args, **kwargs) -> str4 p( V/ A9 Q3 |5 i) k
; Q$ Z& X. t/ j" q8 C 使用args和kwargs的替换,返回S的格式化版本。 1 |* K* V# H3 r4 `0 d# D0 s% w 替换由大括号('{'和'}')标识。 - Y5 m9 @8 x. ]5 s """! [$ C+ e+ P# B- }
pass 9 U1 O! d5 ], l% H" Y' d) `! Y: U3 p) e. E. O+ f4 o) n7 [
def format_map(self, mapping): # real signature unknown; restored from __doc__7 n z# o& u h6 d3 ]( m, K7 A" W* q
""" 9 K9 x; D9 O4 y, Z S.format_map(mapping) -> str ' ]6 o. h; B& o" J # i; A9 U- u5 o6 c# @. C* s% ~7 D" A Return a formatted version of S, using substitutions from mapping. ) ~0 Q% ~3 Z2 t u The substitutions are identified by braces ('{' and '}').1 j, y B X) q' y/ ]3 J0 Q6 U6 }
""" 7 O0 _5 k0 k/ d9 e* @- ^/ G& H return ""7 P" p7 I+ F) j# g4 g- L
1 ~! ~) z9 k$ P. W def index(self, sub, start=None, end=None): # real signature unknown; restored from __doc__- D3 W! f# F; ~# U) _
""". M( C# ]3 m- G) }. f& y; U& V
S.index(sub[, start[, end]]) -> int ! T; N6 \7 H6 \: X4 S. e K7 |" |0 ?
Return the lowest index in S where substring sub is found,, s7 ]" I. I9 R$ ?; `7 g
such that sub is contained within S[start:end]. Optional3 Y9 a9 D8 N: P/ Z0 L6 ]; j0 S
arguments start and end are interpreted as in slice notation.# J; ?$ j. y" T
n( N9 F5 @% C N# A# q W- Q
Raises ValueError when the substring is not found. M3 [, G y& h% g- f! ~* k* a7 f
$ g9 C/ r! Z/ H% v- Q. D4 t S.index(sub[, start[, end]]) -> int / @9 q) V; ?) Y k R! B! l
.index(sub[, start[, end]] ! \/ V0 l; @* u: b; @ ! _+ c# a- m {* E# c
返回S中找到子串sub的最低下标,这样,sub包含在S[start:end]中。+ T5 y8 }' [$ O1 f2 \1 d9 p
可选参数start和end被解释为切片表示法。1 M; U. I8 }% @" A
$ n/ ?) g, O7 p3 c) F 当没有找到子字符串时引发ValueError。& j8 A2 A8 \) l7 u8 F9 ?) S
"""5 o! Y7 Y6 ]" @- x: ]+ V" {) G
return 0- O! b) U3 h- M4 k. \) w
7 h W% Q: ^) K1 v
def isalnum(self, *args, **kwargs): # real signature unknown , T: S! _9 P# h3 D """ % A+ Z+ O& G& O2 ~ Return True if the string is an alpha-numeric string, False otherwise. $ e- x+ i/ [2 y* _3 Y/ d5 L / h2 D, W4 u ^+ O A string is alpha-numeric if all characters in the string are alpha-numeric and; G8 n1 V" b5 H& p# n7 o6 V N5 V
there is at least one character in the string. / P( }, z. k7 D( E! g' b( Y" h """ - @9 M; T4 ^# F( a5 G pass ' s! W1 m1 T* [, S$ D" e $ n# C$ t3 \) V Q, M$ r def isalpha(self, *args, **kwargs): # real signature unknown ; P S, P, p5 z5 M9 y8 i """ 4 k$ v d: a. t' O Return True if the string is an alphabetic string, False otherwise. . X' C. U8 V0 q, \/ t6 o2 I + C1 t! ^6 B6 Y, b/ S9 y A string is alphabetic if all characters in the string are alphabetic and there \3 I' m5 t H0 @+ G+ m
is at least one character in the string.5 m; b1 n$ P, r8 l' |7 n
"""" L9 K* r, [ M/ q" w K
pass , _( a+ ?6 w, q5 a! s0 S5 a, c+ H9 |3 P/ f& ?3 D( e: i
def isascii(self, *args, **kwargs): # real signature unknown 2 @1 m1 ~4 N3 g$ x """ ' o$ Y6 P+ k; V8 \ Return True if all characters in the string are ASCII, False otherwise.& `- O& n& ~2 j- W1 z
/ W4 s r- D* h* s+ m: w ASCII characters have code points in the range U+0000-U+007F. ; ]9 f1 K4 |7 } p Empty string is ASCII too. 2 Z" z# I2 e6 H. ^* E1 r """ ; `! u& W: [# A; a pass- W& M* r* k+ B# X; M0 a
$ p" f* Y# M6 e' J4 R4 O! F: I
def isdecimal(self, *args, **kwargs): # real signature unknown, k% L4 M4 f7 o8 z# c/ H# y, g
""" 6 x! V( s: s" B: R1 s3 p7 V9 T Return True if the string is a decimal string, False otherwise. ; I. v- k! t0 t) |; N m! W$ _2 e" U4 B# F 9 U: j+ K+ N4 X8 `8 u! i4 v# {: h$ m A string is a decimal string if all characters in the string are decimal and % r: e1 t: l; m$ F1 k: P1 [: e there is at least one character in the string.4 \, B2 S( n. I6 C5 \ O7 K0 { M
""" & ~8 p7 V: B) ~ P! N4 U6 |- T6 r pass 4 f2 l! W6 L8 ^+ D7 j5 j6 d$ ]& b: _" J+ {6 q9 v
def isdigit(self, *args, **kwargs): # real signature unknown1 m. X# O1 Z2 Q* Z
"""4 V# }; X" s4 ]: B3 l' C6 @. Z& x
Return True if the string is a digit string, False otherwise. % F. @* ]) x7 Z# \, @- T6 Y: C! u! F" T+ R) R1 C$ S; X. v: @" G; M
A string is a digit string if all characters in the string are digits and there9 F! o; C; ~8 x& y" Q6 G2 d9 l
is at least one character in the string.# J' S$ l6 B( {$ I9 D
"""2 ?' B$ t9 x- [
pass! ?0 o5 [" s5 m' C
. Z" g$ F3 T: n/ H q$ N4 u7 s
def isidentifier(self, *args, **kwargs): # real signature unknown , K& N+ B* S* C: F* c* x """ / ~1 j( J$ k( e2 X! t Return True if the string is a valid Python identifier, False otherwise. $ j( y+ o1 g3 a, \' A X R0 O: [6 A5 \2 o: a' T# Z' U
Call keyword.iskeyword(s) to test whether string s is a reserved identifier, ( }; ~& ~8 z" d such as "def" or "class".8 H/ b! @9 @, Y# h, A2 P
""" " c1 I; H) O; J pass - j2 W: h' e$ p! Y0 s: L% a2 x/ N8 D3 V2 d* `
def islower(self, *args, **kwargs): # real signature unknown$ x' ?* c6 f9 W/ _
""" ! B E4 I) a/ U. v4 [% }5 i" p Return True if the string is a lowercase string, False otherwise.- b5 ^/ }& g+ p9 o p) w* @4 ]
6 J4 H9 p [ k4 G: L& o1 z+ x7 v; f A string is lowercase if all cased characters in the string are lowercase and t' W+ S1 w% T: @/ l1 y there is at least one cased character in the string.* |- G) e0 Q4 i# H3 f+ z2 Z5 [) c
""" 7 W. _4 Z9 R5 {3 r3 p# O; c4 z0 k pass 6 U$ o% c9 j3 z/ e0 l3 x1 @( H9 h0 d4 |: C2 K: Y
def isnumeric(self, *args, **kwargs): # real signature unknown% C U8 ^5 a6 @4 R; b/ x7 K
"""$ [! Y! U: u, j( \7 X0 A% u
Return True if the string is a numeric string, False otherwise. 9 h2 ^; i! s3 W, e: U X' M9 H' k8 o- j, x. N R/ O
A string is numeric if all characters in the string are numeric and there is at [- c1 w6 c( Q least one character in the string.* w$ r$ Y3 |2 v+ Y1 y
"""( E7 ~: ` a. i* K
pass . G: h: c+ ^$ G0 ` j% r) S3 A/ q* c s7 Q, m, N3 w) q
def isprintable(self, *args, **kwargs): # real signature unknown4 q& t7 a2 K0 @+ C% W
"""- S: K; M& i; f2 X" M" S1 b
Return True if the string is printable, False otherwise. . O3 B9 W E- A. o$ G: L9 e. F" F0 ~& D( j) E0 f
A string is printable if all of its characters are considered printable in 6 o8 f! e( y7 w% W# }- J repr() or if it is empty.. l# u2 D3 H( O5 J
"""1 O$ T" f6 \1 i, Y
pass& Y& G. ?( c) n4 _7 [( I1 K! G
2 \" }' z9 \2 }( [; y
def isspace(self, *args, **kwargs): # real signature unknown$ @0 y0 @% H5 l0 N) V0 {8 y+ v* T+ L
""" 9 k! \7 G+ w, f6 l Return True if the string is a whitespace string, False otherwise. : c2 {, N4 j, D, g* K # D4 R: K1 P% ? A string is whitespace if all characters in the string are whitespace and there- ~/ O0 b4 h/ A2 H
is at least one character in the string.% o) g: Z! r1 K
"""! e$ ?7 ^5 g f5 }! A
pass" `# L! t( y, U. G
! `% }% r7 L6 \# r6 \
def istitle(self, *args, **kwargs): # real signature unknown% R' Y% j y: O9 F2 n6 W' D
""" ; f0 m( f8 N& V9 r5 M! Z0 i Return True if the string is a title-cased string, False otherwise.3 K5 z0 F6 c& q
7 y# a* G# R9 d In a title-cased string, upper- and title-case characters may only) I2 _5 O% y0 _4 ?% s
follow uncased characters and lowercase characters only cased ones. ! R8 h; ~; a6 [. ? """ - z4 `9 B5 \+ W7 o3 ~1 L pass( j" u$ v2 e6 v9 |* ?% u: G9 I7 g0 l
# W- M, T+ A% H1 M def isupper(self, *args, **kwargs): # real signature unknown0 I9 B: s- j+ y R
""" `1 h! D8 `6 w5 B4 m
Return True if the string is an uppercase string, False otherwise.9 j; U! ~3 ?; T/ F2 M% B
" G9 q3 _' ^! {
A string is uppercase if all cased characters in the string are uppercase and $ s, U: t; Z: d) C4 K/ @, z there is at least one cased character in the string.) j; r+ x) G( x0 |; `# Q$ k R
""" * X9 V0 p x( H; t' M" R pass & G2 M% o* t5 E4 K" G9 u! B \; E; `$ I9 M: e2 \
def join(self, ab=None, pq=None, rs=None): # real signature unknown; restored from __doc__ " R) h' L0 ?( a/ W6 z& k """0 ?8 S2 H# V& Z, r% N( z
Concatenate any number of strings. 5 D" J1 }* B- q5 d5 D % p+ L$ p0 i, X' Y3 ^ The string whose method is called is inserted in between each given string. : ] u0 A% u2 O. x6 G# D4 b The result is returned as a new string.. ]9 @( e- v- ]/ j6 ~0 ^/ t
- l2 A1 w& L1 k! \% j
Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs' 6 e+ x) U7 X6 ]0 w ( P1 Z5 ~4 [( D1 a! ~* g0 @ 连接任意数量的字符串。 ) J* L9 _3 `4 ] i2 C& D7 p- P$ n S2 L 调用其方法的字符串被插入到每个给定字符串之间。0 Z6 q) y% ]" e% v E4 x
结果以新字符串的形式返回。 3 s( o6 D+ @' I 6 ?1 |; T4 M' K: o5 Q! a 例如:“。”。Join (['ab', 'pq', 'rs']) -> 'ab.pq.rs'& M3 i' ?9 A. O# R B$ l
"""$ n. u+ r7 c% ~- k
pass% d( m' W0 _6 W2 w6 I
# x/ v" X, O7 T+ r X def ljust(self, *args, **kwargs): # real signature unknown 6 a- U, n3 _7 I* E- K* u& F """ " A$ ?+ J: J( H% `5 P. d; D Return a left-justified string of length width. : @! I2 s7 ]) G) M 6 p3 c) w" D9 @8 p3 U$ k8 x8 [ Padding is done using the specified fill character (default is a space).7 T4 _# b: K6 k9 X' g
! B' b" E3 g3 X) v- S) i
返回长度为width的左对齐字符串。4 D7 @. P1 v0 m. W" L* C3 _
1 n! R. o! Z9 b& L 使用指定的填充字符(默认为空格)填充。 d+ R5 g/ o$ \- y- ? U
""" , z3 m+ d9 I4 X0 g6 t pass " e/ e+ Z$ N+ P F- p4 \) D3 z) l0 x2 v; N$ i) R' H" G
def lower(self, *args, **kwargs): # real signature unknown " j' n( ^, ~- e P """ Return a copy of the string converted to lowercase. ; I; U. z5 I& v- g
返回转换为小写的字符串副本。""" 0 S. }2 W; _. g pass $ g9 ~% }- x- N, \8 X3 M" A0 v; b' n" Q. [2 a* V8 L
def lstrip(self, *args, **kwargs): # real signature unknown+ V& v- b. d3 Q# G6 {3 i7 ?# z
""" 0 l- _- S+ |* k7 }& S2 |+ o Return a copy of the string with leading whitespace removed. ; Y: Q' y: g; W6 y! y( @* _% [! I1 M% [3 g7 A4 S
If chars is given and not None, remove characters in chars instead.8 d# b+ E& l; r0 ~9 U4 G6 k0 f
5 N) r" i4 G" c# _0 U 返回删除前导空格的字符串副本。 5 u4 |: _. u' o1 `( ~* m+ F. Y4 K- L. w) z4 n+ z. l0 b' U! ?# R) G$ F9 W
如果给出了chars而不是None,则删除chars中的字符。$ M+ N, o- ~0 o" {+ o
"""! T( F' [2 o* N, o. [- S9 H1 i
pass+ t6 W8 [) J: K) F2 W9 m* y7 W
7 _) J2 O- g8 f, O& T- s def maketrans(self, *args, **kwargs): # real signature unknown, X* w# Z4 A, a( J0 C
""" 1 o. U: a# U3 ~! g0 ~7 N! ? Return a translation table usable for str.translate().# W! w+ D: C. |$ W4 q' n& ? B
1 a# r* |+ a1 T7 F# F* ^ J If there is only one argument, it must be a dictionary mapping Unicode + {# l7 v4 g, W/ t0 d8 s6 ^4 f# q ordinals (integers) or characters to Unicode ordinals, strings or None.5 s# r+ H2 n& C& l2 Q* [
Character keys will be then converted to ordinals. 7 a1 p, a7 R2 f% q+ g If there are two arguments, they must be strings of equal length, and3 z. r$ c2 b2 `' Z# J7 P) [
in the resulting dictionary, each character in x will be mapped to the% w2 n5 Y; h; _9 _
character at the same position in y. If there is a third argument, it 7 p2 G- y; k" J7 l7 a5 k must be a string, whose characters will be mapped to None in the result. 6 q, J# s7 C. _2 ]5 t/ b4 ? """ & X' {4 U3 h: Q1 b pass : k0 Z: j" S3 T# m; X% v + Y3 i: |* o! u( P, r0 f$ r0 @ def partition(self, *args, **kwargs): # real signature unknown* r0 c8 c3 G# J/ M7 x2 x
""" 5 E" P$ W/ e' Q5 S7 m Partition the string into three parts using the given separator. 0 e' a! @8 k" t- }, A) t0 n' f* ~7 Z# T9 _0 C
This will search for the separator in the string. If the separator is found, / s, U) G4 i' K4 t1 ~% k6 w returns a 3-tuple containing the part before the separator, the separator 0 P2 X! J8 _& z$ J9 f# t/ y itself, and the part after it.( F/ X1 J6 |, ~7 Y
5 O+ @! R% [* `
If the separator is not found, returns a 3-tuple containing the original string + K/ |9 }. F. f3 i- D and two empty strings. # Z* T# R- x& ~- p8 C' _ """ # i5 k3 P, ?& [% l pass5 m( d! ~. r0 J$ ^
6 \+ b- l9 n, x( ~. }% ?
def replace(self, *args, **kwargs): # real signature unknown ' \1 [2 c) K! ~ """! D J! l. T5 N1 ]. S0 X7 R, R
Return a copy with all occurrences of substring old replaced by new. . P( M9 P4 H3 I6 s. \/ P7 @! a0 K& e7 a
count" C( m+ G5 H; `
Maximum number of occurrences to replace.9 N9 |) V' s% n, J$ V1 ]! |
-1 (the default value) means replace all occurrences.' H* q1 J2 \: |; J/ f: r7 i1 F* @7 c) }
& S! C' l3 f) j: N$ G7 R If the optional argument count is given, only the first count occurrences are ) z5 s4 P7 C! R) S, h% s replaced. - _" |1 ]+ F( s8 b1 V B# w' [ 6 K+ N8 b$ V3 t. J1 O1 h 返回一个副本,其中所有出现的子字符串old都被new替换。7 q/ R' @# r2 k# V. g. K" x; M; |
! H0 \. }: ?9 x( j2 ]# ~9 M1 `
数( h4 \% [" {$ t( z9 Y. a
替换的最大次数。 + K _' `; ^5 o; s -1(默认值)表示替换所有匹配项。$ F+ p9 ~1 |6 S7 @
8 ]: _! ^2 f8 e. a' Y, t
如果给出了可选参数count,则只出现第一个count更换。& r( ]) `% X+ F8 `
"""& U2 y- s( z' N* E; K- d
pass) y0 v- T- p. Z6 q6 m9 M
& K6 h, e$ n' E, r# v$ Q( a/ r def rfind(self, sub, start=None, end=None): # real signature unknown; restored from __doc__( ^3 h! ?5 |4 {
""" . R- `: L; j# X S.rfind(sub[, start[, end]]) -> int . o5 z" w4 ?7 ^- t1 i+ Z5 c3 ~' g# n
Return the highest index in S where substring sub is found,+ h$ F2 H4 g7 q) \7 G( q, S
such that sub is contained within S[start:end]. Optional5 p7 p* w% V! [" _1 i6 A5 P
arguments start and end are interpreted as in slice notation. : t1 e' Q) P2 m5 E8 j* p * [- R( W6 C) I( f1 p( ]: x Return -1 on failure.- ]5 B+ n$ v: ~0 W, J: G, w
""" - w W7 v: r g return 08 |( e2 N# |5 S! }; y& V
" q P+ U# ?( u2 J- _7 e0 A' Z def rindex(self, sub, start=None, end=None): # real signature unknown; restored from __doc__" E$ M/ f2 r' B7 }7 t) p1 ]" E, i" ?
""". M1 g/ B, X) O! m+ M- y& d( R( ^
S.rindex(sub[, start[, end]]) -> int 2 O1 w7 [9 J2 j: ~5 ^. z; h8 J! B/ x
Return the highest index in S where substring sub is found,5 t& _5 Y K) Y0 x2 g% |5 A
such that sub is contained within S[start:end]. Optional & b+ ?# N% G4 j arguments start and end are interpreted as in slice notation. & M* X* f7 R. {5 s1 I- o- L' u2 P. v. G/ Z( |- K, p& f
Raises ValueError when the substring is not found.* [( Z/ Q" W- o. L9 i
""" 5 L+ x+ P1 t6 }9 N3 X( s% |$ P9 r return 0, B" t: y8 B( |" T d: Q
+ Y" [+ Q( C4 S def rjust(self, *args, **kwargs): # real signature unknown% V1 N* T1 W$ h2 [- c9 U; K5 \' d
""" ! d' K6 `9 |+ g1 _" J- C Return a right-justified string of length width. J' ~: S# R0 k) J. D; w5 u$ ?$ y
! Y, ^: h1 M# E% g
Padding is done using the specified fill character (default is a space). ) W. h/ q1 s7 ]/ O* x) ~: p4 V. r2 q/ L1 Z. @
返回长度为width的右对齐字符串。 8 D( X& [$ Z2 }+ O, S 9 A8 M$ U! ^0 e% E 使用指定的填充字符(默认为空格)填充。 b5 I! k- H5 E1 P, f4 B """5 L1 A2 R+ K' e' v9 z% w6 {) i
pass0 U% o ?# w8 G y$ `( p
+ ?1 `+ ?2 Q2 h. X
def rpartition(self, *args, **kwargs): # real signature unknown * c2 J4 S/ ^5 `( O/ M' x# v6 } """, D( Q; A- ~- \
Partition the string into three parts using the given separator. - G; e# M# w* h& e& y& U3 M$ F( y E7 S/ U; V! Q o% n
This will search for the separator in the string, starting at the end. If : X: N. Q, A2 G3 h( z. [8 O% a5 V% g7 t the separator is found, returns a 3-tuple containing the part before the / }+ ^% ^6 m# X3 ? separator, the separator itself, and the part after it. * m3 q5 a# o: w; b! N9 q6 {* m9 g4 w- X8 N
If the separator is not found, returns a 3-tuple containing two empty strings" \+ y! e5 S, V6 Q* M; [4 T
and the original string.! c+ H( Z% r. B% }8 L3 C5 W7 P, W
""" ; S: m, ]2 Z0 f2 e9 ? pass0 |4 w7 t; Q( ~2 H
1 ^3 T) W2 Y; |0 Q
def rsplit(self, *args, **kwargs): # real signature unknown # Y" B3 ~/ i+ N5 y9 I! N """ ! u. q5 e# Q( A& k Return a list of the words in the string, using sep as the delimiter string. $ q P% w1 ]$ q6 p S + n1 D) l- m1 y. d sep$ F( i3 B" M9 y5 }% _- n" w
The delimiter according which to split the string.$ @: ^% \4 ^- M* F k
None (the default value) means split according to any whitespace, ( y/ _8 Z. m4 W and discard empty strings from the result.( V! ]% Q6 p" d6 Q' e9 A& O
maxsplit! b/ P7 K/ h+ w4 j0 K
Maximum number of splits to do.6 t' [4 b* |5 H' R7 x+ M# ^$ V
-1 (the default value) means no limit. . O- ]. ?# t) ~1 r ( T( P5 L P1 M- b Splits are done starting at the end of the string and working to the front. 0 u- [ ~# b/ h5 h; g. N 6 y9 |9 j5 H7 S6 j: r) I6 I' Y8 A 返回字符串中的单词列表,使用sep作为分隔符字符串。; e% k4 ]! \/ H7 u+ S. R* U
sep . ^& @, G( m; e. L) h4 B! ]- y 用来分割字符串的分隔符。, U% u' ?+ `: C
None(默认值)表示根据任何空格进行分割,并从结果中丢弃空字符串。 ( @- h' j0 t. v. f . [! |. _6 a. D* u6 I maxsplit8 F2 j. s4 L* D2 f# R/ n: y
最大分割次数。, E5 C0 G3 M. }2 L* c8 c3 K5 f
-1(默认值)表示无限制。 3 d# s1 n9 p- ]0 h, p4 H* r 0 t: N: N% Q0 I9 f9 _2 }0 T: R1 O c
劈叉从绳子的末端开始,一直到前面。 . c* t! k. I! C; O6 \1 I """. o4 Y1 [+ t& v9 d, |1 T$ Y" [
pass * \( Z0 [! Q" Z2 v- O- x . E& x$ w+ X( M X: a f3 ~/ G def rstrip(self, *args, **kwargs): # real signature unknown3 X0 F2 V, P% `* j* C* a
"""/ S; F9 E; ~: _% v. i, i
Return a copy of the string with trailing whitespace removed.& [+ L+ W* ~/ y$ B. P
! f9 e# I2 T6 J+ W/ L9 _/ j
If chars is given and not None, remove characters in chars instead.2 L; j/ V) e- y1 T! F! W9 ?/ Z
- R; P" r M" w3 B$ S
返回字符串的副本,删除尾随空格。 \6 F6 w, E2 q0 E2 ~2 T4 r, p: n( c8 \) w: @
如果给出了chars而不是None,则删除chars中的字符。 7 | L5 Z! x0 F d """ " \4 p8 [8 Y; E$ f2 A ? pass" B3 l* \! W2 x+ c
* J* v; N; E# T0 H4 {
def split(self, *args, **kwargs): # real signature unknown ; @, k4 L1 [) k# a) L """ 9 s& e3 [% h+ |) v Return a list of the words in the string, using sep as the delimiter string.5 O( {/ U2 E8 X, a, g4 r2 K
, z/ U. T7 {* [# [' j
sep `1 x1 k4 c3 J! k5 F The delimiter according which to split the string. , ~" I5 v/ C" _ None (the default value) means split according to any whitespace,6 L4 i' g7 R: I
and discard empty strings from the result." I& h# y6 i, l* j& a l+ r3 m$ L
maxsplit4 Q u1 X0 Q* T O$ L$ k% l
Maximum number of splits to do. `$ n- Q- a" b9 ^
-1 (the default value) means no limit. ! M# M8 B( C9 ? """( @* Y l& y/ ^8 t
pass$ q4 Z; I- [3 G) h6 f
6 b) S% J5 Y8 z6 z9 v+ v \9 b def splitlines(self, *args, **kwargs): # real signature unknown $ w$ X- Z* S- M# ?; d" b """3 a& l8 ^% s! g' s% C5 L
Return a list of the lines in the string, breaking at line boundaries.& b, v1 j# D# M5 O
0 P% U) U& @! E. ]2 V% v% G
Line breaks are not included in the resulting list unless keepends is given and3 b" [% _' a8 t3 A8 |
true. 8 j. J2 `; X0 O& ]% K """/ F- B. _9 q+ I/ H q
pass0 O2 ~2 _% i" J7 t( |9 y* S8 [
8 C! Q$ r1 }" `: R0 M, W4 O
def startswith(self, prefix, start=None, end=None): # real signature unknown; restored from __doc__ ; H X% z" ]- o' ~$ o' G """5 `0 ]1 R/ V# _- T+ k0 Z4 N
S.startswith(prefix[, start[, end]]) -> bool r: s X9 j: ~' C) d8 d1 V/ e$ W6 E2 q$ s9 f
Return True if S starts with the specified prefix, False otherwise. 3 e: t7 K9 {4 Q+ z1 O6 G7 M- W With optional start, test S beginning at that position.! X2 @/ n; e; `) W7 u. \: c
With optional end, stop comparing S at that position. ; ^8 ~1 R3 y) t( r; O. Y" _ prefix can also be a tuple of strings to try. ' H5 g ^; J( w- h9 ^0 } """ 7 B# V$ U$ w# x2 ?/ U return False# r0 a. U; Y ]" h! D
8 X! F- U5 P% V+ D' {* { def strip(self, *args, **kwargs): # real signature unknown " z5 e. N6 C# H """' \" L. d" E0 J) F
Return a copy of the string with leading and trailing whitespace removed. . F# W$ ^% m" C6 [* b+ u( [2 q& {6 o/ E9 r
If chars is given and not None, remove characters in chars instead. . f; J0 v# C( z - A9 q2 W" Q4 O* ?( ~/ r( l0 @1 g 返回删除前导和尾随空格的字符串副本。& J8 P! h' Q7 t4 m
: S. v3 ]1 K: I4 n
如果给出了chars而不是None,则删除chars中的字符。4 [/ {% M4 Y0 K
""" * J( N2 R. s+ l7 R pass 7 s2 D. w& A4 E% e9 ^: K# \8 L. y0 b
def swapcase(self, *args, **kwargs): # real signature unknown& `) s# K y: D+ U1 x" l
""" Convert uppercase characters to lowercase and lowercase characters to uppercase. """+ ^9 n; j2 J/ h2 H% s
pass , x% c' l* F7 e% v. ?) A& T: v ?3 p2 ^7 b
def title(self, *args, **kwargs): # real signature unknown $ t) D/ }4 w5 F! R" a$ X% H """7 R6 M: m. u% P! n
Return a version of the string where each word is titlecased.: b# K* Y% F% P" S3 o, F' a
$ U3 M! {; P4 h More specifically, words start with uppercased characters and all remaining V% b5 l( z; s$ O' \0 L cased characters have lower case. 6 \+ ]$ n/ H9 h$ @ """& g9 Z3 _7 G' p- @: N1 W
pass8 A3 w* l3 E, t" g2 a( i
1 g* |1 b, z7 V) N( U* t def translate(self, *args, **kwargs): # real signature unknown# f) p" d! y0 c+ D$ A
""" - e/ t7 h- O& ?2 ?* Z Replace each character in the string using the given translation table. ' N& B# v2 d' ~5 g; @- C$ v- N * Z9 Q, V! n$ V6 v table6 N" r+ b) |9 X: p6 F
Translation table, which must be a mapping of Unicode ordinals to 2 ~6 K# n/ I$ |; s9 c Unicode ordinals, strings, or None. ( \7 {( W& {& w / p( c3 m" w! R6 f The table must implement lookup/indexing via __getitem__, for instance a + m# [ z+ O+ V( V; C# c- M6 w dictionary or list. If this operation raises LookupError, the character is3 @7 W x( r6 e
left untouched. Characters mapped to None are deleted. H; i% T4 G/ Y- l% y """$ h2 Q3 _, ? W2 `
pass 4 A7 F& }2 s! \4 g! `! |9 q 2 ]+ B/ W* U6 A2 L6 H, _: X def upper(self, *args, **kwargs): # real signature unknown1 A4 |* O, B7 ]" {0 \$ B6 K
""" Return a copy of the string converted to uppercase. """ - h6 z# d/ C7 S# A* g pass % b% j3 c; ?' X; C, G$ E & O8 Z; Y! [7 G/ `& T$ Z def zfill(self, *args, **kwargs): # real signature unknown3 K6 |" i+ M* B: V) B
""" 0 h4 P/ {) v# G3 } Pad a numeric string with zeros on the left, to fill a field of the given width. * x1 T9 J; U( V x $ g5 k4 F& @1 Z The string is never truncated.! b/ {+ V( ^& c/ G5 I$ u
""" * B* r7 i; A3 `2 E& a" h! a3 e pass 6 S* A. X: d/ l5 o7 [' h3 r+ z/ B+ M f
def __add__(self, *args, **kwargs): # real signature unknown 4 b; a* G3 X8 n4 R# [' m& y; X """ Return self+value. """ I" R3 o d' M0 O
pass ! E# Z4 e/ Q- [# Y \4 \* I7 J. \' D1 _
def __contains__(self, *args, **kwargs): # real signature unknown ) l: ^/ u% R. T3 s """ Return key in self. """, M% f: p: X, d+ w; d' @- D) I
pass 2 x) n( h0 q( T( {2 R% |* e5 P* l/ }" @- V# U$ B
def __eq__(self, *args, **kwargs): # real signature unknown % X0 ^1 V/ j! N0 J6 l; E' S' } """ Return self==value. """8 f. t! i: N; n
pass: m2 c$ g; G# h: [& ~( }
1 F- _! K6 `" K
def __format__(self, *args, **kwargs): # real signature unknown+ I: L8 D: D7 h
""" Return a formatted version of the string as described by format_spec. """ 2 n' N2 j3 q; ?6 b/ X pass7 ^% A! t/ I. @$ v2 O
# O6 C! B( g5 R def __getattribute__(self, *args, **kwargs): # real signature unknown " X, ~/ x& J( F- J+ u! b' { """ Return getattr(self, name). """, J! Y. j3 c$ e2 P9 {4 D( ~
pass0 }& ^5 A4 |3 H+ l
, K# q* @% g1 B e- @0 ~! S def __getitem__(self, *args, **kwargs): # real signature unknown2 M, T$ U, m) y# X4 Q3 T6 V. o- v
""" Return self[key]. """: e& L; _* K5 S. M; A
pass$ m4 [$ i" U/ G. b, G1 L% w
5 L9 {* e% O% E. f
def __getnewargs__(self, *args, **kwargs): # real signature unknown ! Y5 S+ h; _: g" J4 c) ?& P. ? pass. ` v% J! |& t) ]
$ W% N/ W0 b" N2 R
def __ge__(self, *args, **kwargs): # real signature unknown6 u' {5 c" m+ P' L; U
""" Return self>=value. """7 R1 k# H0 @& o' L0 I# a
pass . C( j, {% y# o& a; `( o2 i* p! _( E$ m6 S* \6 X) |$ z
def __gt__(self, *args, **kwargs): # real signature unknown5 c* X7 Z# A! [$ [$ u) {% H& i5 Y
""" Return self>value. """ 9 T& g, k0 P0 \* ^- A" ] pass7 \" I3 Y( t& j' v3 e" H$ X" M: p
& M5 x9 W/ G: I9 q/ I9 E; _
def __hash__(self, *args, **kwargs): # real signature unknown1 [8 T( ]0 G( U; ~' V+ N
""" Return hash(self). """ - V: t' f+ t2 E& C% S pass 9 D: V6 u+ G6 N9 ~) b# M R1 s! {0 A# w2 Y1 E/ w
def __init__(self, value='', encoding=None, errors='strict'): # known special case of str.__init__9 ?4 w, L, L ?& }
""" , q& i9 I. @1 a5 L$ A str(object='') -> str ( ]$ z) u" k* ^/ d! b* N+ L3 h str(bytes_or_buffer[, encoding[, errors]]) -> str8 U6 S- `) V# z4 Z1 {
) ^" v9 X9 W2 X2 C3 z Create a new string object from the given object. If encoding or+ p5 C& T6 g$ N/ C0 T" a1 L
errors is specified, then the object must expose a data buffer 9 v4 ~! C7 S ?6 A: o& @( d8 ]2 Q that will be decoded using the given encoding and error handler. ( k2 i/ Y0 z$ N- p) d* A1 j Otherwise, returns the result of object.__str__() (if defined)6 l# f8 R1 W( p: y
or repr(object).( M2 _ U4 f" Z: y
encoding defaults to sys.getdefaultencoding().+ W" d2 M" `; \; C
errors defaults to 'strict'. " D; U3 c3 Y/ f$ V0 O # (copied from class doc). B8 ?7 ^5 V2 y& p" ]
""" ! S. R7 H+ w3 g# M h. U( n pass & `1 Q6 Y1 |) s* x7 e- h, i$ H " k( L0 ^6 z/ f0 T) C) [& s/ U" ? def __iter__(self, *args, **kwargs): # real signature unknown 2 c' R% n/ Y1 y0 T# |3 P" C0 x """ Implement iter(self). """/ q, }6 }$ M$ `5 C* X* L
pass: Y* d2 G3 G7 ^6 j6 g T" B" m
0 r$ ?5 S2 \3 I. H/ A9 g+ h def __len__(self, *args, **kwargs): # real signature unknown / r3 O+ E$ C# r& p; G """ Return len(self). """' L5 }, a7 ?! [" A; D/ C: E" V& o! y
pass) b+ p5 l4 p$ x! U& o
0 }4 v- I7 W0 ` def __le__(self, *args, **kwargs): # real signature unknown4 n+ Y8 p3 b, T( `
""" Return self<=value. """ * k0 G( B6 c! O4 p- [1 t. X! ]: F& ^ pass : h4 m4 Z* s4 r5 x) b7 K1 s4 v2 u, _, h. ^* h& o/ A0 F- v
def __lt__(self, *args, **kwargs): # real signature unknown ) B, g7 \" l( Y- I4 ~5 ] """ Return self<value. """ 3 [& b- f+ L* B pass 7 \% V+ Y4 n% S& s/ d6 w. n5 h3 e7 {1 t
def __mod__(self, *args, **kwargs): # real signature unknown 0 z3 K- I9 w1 u% w """ Return self%value. """ 3 Z( Z# Z% V) f/ s1 f n pass3 m% p; I3 T- r1 y
# C- Y u3 V' H( O
def __mul__(self, *args, **kwargs): # real signature unknown 1 n3 C4 }( Z& x- i( H """ Return self*value. """' U! y* w" H( v% D5 L S. ~
pass ( [3 @) {% | i8 k$ i) Z9 b" f5 E7 L. e& y3 q8 ?# c
@staticmethod # known case of __new__ ( u) w8 b7 e. `3 I, c def __new__(*args, **kwargs): # real signature unknown _1 n( y Y7 ]# G& G """ Create and return a new object. See help(type) for accurate signature. """: O% `$ V( |: U
pass 3 Q0 K7 }2 h1 j. Z4 a; R. P. o / ` k& v$ W# R- U' i def __ne__(self, *args, **kwargs): # real signature unknown 7 K2 {/ u3 q+ h1 ~" J' B """ Return self!=value. """ 5 d& s0 Z4 u) @ pass/ u1 ~4 a5 M1 K$ c) v
: z- H; o" w6 c- D( U z
def __repr__(self, *args, **kwargs): # real signature unknown * c; a y2 P$ ~ """ Return repr(self). """1 @" `0 E6 w; L# j
pass' F ?0 D K& ?5 C$ ]! l
+ N6 V, m0 V1 X, i# P def __rmod__(self, *args, **kwargs): # real signature unknown ) g, f2 m) G9 _8 o; a """ Return value%self. """' {' Q; ?5 B7 n; [( Y
pass 6 @/ {6 O- v* x% H4 L8 l" j: H( v; q7 k# }# Q$ s/ W
def __rmul__(self, *args, **kwargs): # real signature unknown5 a- K- y) D/ x u5 m6 p: N ]
""" Return value*self. """ & A6 Q4 f5 O2 z' m* K s- N# N pass( @' e9 J" s1 J! j x+ }" V/ k( d
/ @6 ^/ y4 {8 u' S7 K
def __sizeof__(self, *args, **kwargs): # real signature unknown+ C" l2 k' h6 D1 o& P4 _
""" Return the size of the string in memory, in bytes. """ . g2 d& M: y$ m1 J! E) x y: ~0 N pass1 B7 }7 l1 L+ M- G- Q* q
5 u8 S$ T8 T2 j0 K4 Y! R
def __str__(self, *args, **kwargs): # real signature unknown8 J- O& B1 W4 Y6 e
""" Return str(self). """# c+ E6 ?; k( H$ f9 D% G3 C% t/ x
pass # ?; ?- g1 Z- R0 A) n$ F5 j, k ( G+ M4 z- ^. |! E q) d1 @0 h18 c: G- n) E$ k# b( C4 Q% F7 U
2 6 [6 Y9 m: }% I& D6 z4 C3* i+ e( R7 b8 w: B8 H2 P
47 h7 \- ?2 l5 [0 T) A6 {
58 ^# @ f A5 ?( g
6' P+ d% Y) ]' ^9 U$ n) T6 \
7 2 P9 B, q$ c4 X4 m' Q' N5 q/ f! ~83 k# f7 E( L% \, b% {5 c
9! S0 A8 { t- e9 `( Y* R) ~2 D, c
10 3 [8 @: G+ b2 a# O11 " q# L) p' e' p! o" Q R7 R12 : l% \9 ? u3 p3 c135 b1 P8 ~' ?% T& u. T7 q0 ?
14 ) q# }3 i# R8 L4 W4 l15. F0 H# \% Q2 p, H7 L
16: [2 w1 x2 @1 f& h
17 " J/ w' [0 ~4 }3 l0 j* ~6 \18 " E! J2 V9 i \" `: m* ?7 V+ e" X19 - l1 V- D0 u3 M, ]3 h5 n# ?' _20 ' C# O' a3 Q8 m5 d+ ~3 p0 ]21 g1 p, n5 }1 }$ q" V22 x7 n* D! E5 g4 T8 O7 {23& Y' }# I" Y# G- _% p' l. \& @
24 - e6 L' C* m! L* F0 q2 v6 Z) B v252 s! |8 n+ {& l t& W2 t- I
26 5 v1 U" Q; G) }279 D u9 {2 j* N3 a
28/ g1 z- t ]! Z# d9 Q
29 ' x* q, k, t( w W" q# P30" S2 z4 c3 H- _! J! B
31 - \ Y* }# J) s8 F5 m32 ' a9 z) I1 U+ S" W( o33: ^& `9 @- R% m; m) M( B
34 ! h: v! W3 m$ t+ E, j" G4 P9 A35* Z3 e ` D3 q
36% {7 |+ p$ E, y- }! x+ Q) ]! I1 N
37 Q K0 H- D+ b/ B6 m& V+ u
385 [( w' b$ h2 }9 B3 j
39* G% H/ v; B& x" R' [2 o
40 ( A3 x. D2 x" h# i" _( e41' Y+ ^5 n- I U, u
42 O5 F5 b j1 B) P, j6 v0 }43 L+ C9 {5 x" N; A
44 " P4 E& g" A8 C45 . k: }8 `! {4 G! i$ V464 }/ J5 [1 D' b4 o
47 1 e- q* m# h ~. u, k9 ~" @48 : w1 Y/ l8 v+ X7 e1 @49; Y. f; c6 h# p5 ^' [: L
50 , { L O: m8 g51 _6 Y; _) G7 c$ {/ @52* \2 U7 ?$ e2 y2 I
53* t) ^6 M1 u8 b" a7 K
54 8 g3 T; z+ I% Y: I! o# H55 - P! E: E6 W5 e# ~5 @! o( ]6 n56 ' D# m7 T/ _4 p1 a573 `! x( G" C Y0 r0 g. U% D3 p
58 : V/ y: l h0 ?5 ?59 ' B V* Y# b# Z+ g4 b( [* W# T' ]3 x+ s60 P2 d2 e6 r1 a61 w* Y4 V, x1 ^* q' D62 , u' n0 |& v9 }4 P T63 0 H% @" x7 k" R" i3 W8 f8 h64 + v! I+ F! J* S9 p65 , r3 R& P) {; J& v) F* \66) H8 I; E+ e' \0 w9 _
672 _# t; P, w* f7 \, h& m" N
68 * A" I5 K1 e5 _1 m698 \6 @2 D& a3 n, Z- j( c
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553 5 u" y% Q6 o2 j. H# C1 M& A7 v- g554& i; g' ?9 _( b1 z8 S4 x7 g
5550 e6 O4 t/ S. b" ^% v
556 : f3 }6 j" [" e$ R/ v, m557# Y ^& `( Q+ J- f; _7 u- B! s
558 $ ]8 A4 m) H1 E, o2 V! [: b0 `559. }/ W" i# P4 v* h8 T5 W
560' v2 v6 X/ ^) m) ?. i8 _
561 1 j7 d, f% T/ M, Y7 a. p5628 d. u/ E3 m/ A; D
563/ P' v" v! v; @" A3 J1 v# f
5646 {! Q8 r# t- Y Y; s `3 `
565" E3 L+ r. N; K
566 8 p7 r8 `$ K8 Y$ F* Z5674 G9 G8 e a2 z9 H) Q* K2 e& J
568$ q7 i( R0 E" p2 F
569 & K/ m8 s N$ r, U4 `+ }570 ( V0 t$ X9 }4 L6 A571 . o2 H4 X [$ r0 n9 I572 1 e' u; x* m1 D* }% N573' ]. t& L* y' g$ a, n
574 . Q" Q5 K/ f/ @# A/ }% P I575* g2 g; O5 @: k( k( b7 I
576 5 n# z/ {! _5 N5777 B# f5 A! K( }+ c* R
5780 @- k# H3 h0 R' e2 C- n
579 6 o6 `! K8 ^7 j9 y3 R$ k580 ' a8 U& u# X+ N E+ ~! K581& p- I C" H: Y# h; R
5823 v, v& ?5 o. |* k! ?
583# O7 G6 e B4 W$ c/ K4 i3 a) T
584 + J( V7 {4 V4 E$ w) K585) f! {" X6 N/ Z8 h
586 ; G) O$ d7 t! C( e0 e- h% r587 , C4 P/ Y O4 G( A% |2 j5883 f# L3 I6 I5 j; `
5893 Q- l4 J5 K; q- `+ c& I* g
590 + {! e, \' Q) }6 C6 C591$ z1 _) w. }' t6 z7 `( l6 b x4 M: q
5924 u/ _+ `, }" P" Q
593 % ]" w* D) j8 e) A' D' O$ P594 0 M2 a$ N" S1 }6 |, z; y- i595 ! T, V+ g1 ~- U9 Y0 ?596 - |# c7 t, U9 k8 x ?( H X5979 g% r3 t0 B# H, y- U
598 $ j9 {6 g' h" K7 ~5994 c) v) L7 Z! x/ g
6003 F3 s1 k( z. Z1 ?6 g$ L' u9 ?6 W
601$ }/ `- J0 l: B8 @- a
6020 Q" |" A3 m# } k
603 / Y6 T- C( h% G( b5 X604 8 `3 ?$ i# j* |5 o605 4 } ^$ K% X2 G# F! E& U) t$ [6061 z! p) {/ }) a
607 1 g0 t0 o% F: _: {$ `: K o+ O608 % a0 }4 y8 L' {" Y4 d$ Z a609 j. e$ j- L5 w( P: U610 1 K$ y% B1 [ D! L611 $ G. l5 D% e& r8 e612 9 c7 \' ~2 c/ t* B613 % o& F, Q0 s5 L3 j6141 \- h6 F4 |8 M) X0 \3 J7 R
615, ]2 z3 ~. Z% o
6163 c- W) k2 C/ C/ o A. ~+ O
6171 p; b/ U, V) N' _. B
6181 h: M% L9 c2 t# l
6194 A. Y' q9 S2 t7 Z
620! R( I, N% s' ]
621 % B8 T1 N9 f0 y6 F! t7 W622; D# B: O' X) a0 k$ u
623' n" w8 a, `+ w* w5 l
624% v0 Y, C: y1 q6 q& }+ H! q
625 . K" T/ k5 v+ o& s( k( n626 , e9 E. ]' H$ c7 }4 l& O5 y( o627 ~9 l9 ?' ]: ~: \+ j0 z
628% |% P7 R3 `: n
629 / M/ d. A ?1 { z7 Y/ E. }0 a630, L2 G; ~+ L7 d' `: O2 h* E
631 $ g$ \; \) B* z5 r8 Y$ j ]% J632 2 e, x; Y* [) B6 N+ b3 k5 G. J. e6338 g( J! x4 ~, h# x S3 [1 ~
634# U) L+ e! W+ a, l5 U) P7 o3 Y6 P
6352 e) s. _. R& n$ T [& N6 ?! P
636 0 S2 o O& O9 t1.字符串操作符- p/ ^. z7 F4 W0 P: t6 h# ~
操作符 描述0 n* Z+ P e' L( |$ ]
+ x+y,连接两个字符串x和y ! C3 S7 _+ L t1 B" U: p: N* x*n或n*x,复制n次字符串x ) B, T* v& ~" B \! U8 g/ din x in s,如果x是s的字串,返回True,否则返回False/ C4 c; d, [3 R. l/ ?# b
2.字符串处理函数; e& g+ L" j: P, ^, b, b
函数 描述 / g3 J! j# A* |5 tlen(x) 返回字符串x的长度,也可返回其它组合数据类型元素的个数. e- u& d* q! J
str(x) 返回任意类型x所对应的字符串形式 / b+ u, S8 h0 O( Y- nchar(x) 返回Unicode编码x对应的单字符7 ^1 x- X F# c
ord(x) 返回x表示的Unicode编码 9 [. @8 ^1 w- ~, L. _/ f* ghex(x) 返回整数x对应十六进制的小写形式字符串# b; l: i) T9 F* h( P; a1 n' j
oct(x) 返回整数x对应八进制的小写形式字符串 ) s" e9 F9 M) u) \6 _2 O5 C* O0 f( o3.字符串处理方法7 ]. D0 C7 d' H. R1 V# o
方法 描述 " @2 G) E5 v; m; ys.lower() 字符串s全部转为小写 / p0 C- l; i: z* {- k4 e B3 Ys.upper() 字符串s全部转为大写 % Y- l. T7 {& d7 |* V* p' Ys.split(sep=None) 返回一个列表,由s根据sep被分割的部分构成,省略sep默认以空格分割 . R* y3 f* F; K# qs.count(sub) 返回字串sub出现的次数& |& ?* W+ I8 f4 K) @
s.replace(old, new) 返回字符串s的副本,所有old字串被替换为new, d6 b9 M) y. G) y8 X9 @! Y# s
s.center(width, fillchar) 字符串居中函数,fillchar参数可选4 b) s9 I3 y; _ e7 `. W1 @- R! d
s.strip(chars) 从字符串s中去掉咋其左侧和右侧chars中出现的字符* `' K) ]5 @3 M( H& _
s.join(iter) 将iter变量的每一个元素增加一个s字符串5 ]% P* T& W3 J2 z9 H
4.字符串的查询操作 3 P' \1 \9 t- i5 s$ |方法名称 作用$ w7 A( I" q# `
index() 查找字串substr第一次出现的位置,如果查找的字串不存在,抛ValueError异常 6 Y% e& }2 ?# v( ^8 Xrindex() 查找字串substr最后一次出现的位置,如果查找的字串不存在,抛ValueError异常 * ?, j R% X- s; w" I* Pfind() 查找字串substr第一次出现的位置,如果查找的字串不存在,返回-1 ! B& @! ?5 m8 q# H- s/ U, brfind() 查找字串substr最后一次出现的位置,如果查找的字串不存在,返回-1: ]! O% J' z3 b3 w) y4 g
''' " H! T; R: `6 f- u& i J! Pindex()查找第一次出现的位置 抛异常 - t+ z- z' g2 f v2 l; k6 n8 jrindex()查找最后一次次出现的位置 抛异常 2 y' A; N/ ]6 o- q, Z1 H9 O $ Y1 ~+ j1 h; @8 L! \! W! _7 pfind()查找第一次出现的位置 不抛异常,返回值为-1 ( B! C* Z1 q0 K. c: c- P9 ?( [rfind()查找最后一次出现的位置 抛异常0 h0 ~9 U; Q& d+ a
''' 4 M* n- Z _7 k% ns = 'hello,hello' 1 X9 s; _* h0 ~( m7 R- m4 |3 n; Tprint(s.index('o')) 1 a2 Q* A9 B- r* s4 w& a' n/ iprint(s.rindex('o'))- |+ I/ |4 T$ g8 b' w( U
print(s.find('lo'))% [) Z! A- ^( Y6 k- L# ]/ x. Y( _
print(s.find('ui')) # -1* b5 q. r% Y# p
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K/ m: n6 N' H0 h- Z2 C' u5.字符串大小写转换操作% Z2 g6 V c o& y
方法 作用! g& T) V! V) R
upper() 把所有的字符串转换为大写字母/ }+ L' D- @( g- M4 y
lower() 把所有的字符串转换为小写字母' r, x9 }! g F1 w4 ?* ?7 ~" C& W
swapcase() 将大写字符转换为小写字符,将小写字符转换为大写字符。3 d9 x' h: ?8 `9 c: U4 ~4 `
capitalize() 使第一个字符为大写字母,其余字符为小写字母 8 \$ b" F* V$ a2 ^! x( @title() 返回字符串的一个版本,其中每个单词都有标题。更具体地说,单词以大写字母开头,其余都以大写字母开头区分大小写的字符小写。* `( l3 P$ ?% r9 V |) _/ n
# 字符串的大小写转换 5 N6 ^* }& s( `- ]' t# 1.upper()把字符串中的所有字符转为大写 5 ^3 d% t, r4 j% @( m# 2.lower()把字符串中的所有字符都转换为小写" |: h% {; q; B4 B- M0 Z
# 3.swap case() 大转小,小转大3 {, r0 h7 @, p" k G
# 4.capitalize()把第一个字符转为大写,其余字符转为小写6 p1 Y& r! h7 [* u k
# 5.title()把字符串首字母转换为大写,把剩余的转换为小写2 O e* s8 k) p8 G; h( o
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s = 'hellopython' 4 Q f" R1 ?- t! V. k* r: Wprint(s.upper()) # 转大写 9 O# K* a7 k6 f, [9 Zprint(s.lower()) # 转换后id改变,会产生一个新的空间0 \+ D; @1 d* U1 a3 W! I$ W: P
print(s.swapcase()): }1 |. s" {9 G( J
print(s.capitalize())) }) V* O- |" p# F: B- P
print(s.title())3 L( H4 m1 U- X
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6.字符串内容对齐操作方法# P0 C) [/ j0 y- U4 J
方法 作用 ; m$ `; O2 C5 ]' r( Bcenter(width,'') 返回一个居中长度为width的字符串。使用指定的填充字符(默认为空格)填充。 9 l0 W. |4 [$ x2 t) C5 [ljust(width,' ') 返回长度为width的左对齐字符串。使用指定的填充字符(默认为空格)填充。* `5 G6 [4 X$ b. g; i( |
rjust(width,' ') 返回长度为width的右对齐字符串。使用指定的填充字符(默认为空格)填充。 2 y+ [# x4 T5 s2 J% ?3 C; A% M ?# Mzfill('int') 在左侧填充数字字符串,以填充给定宽度的字段。字符串永远不会被截断。& C9 A1 ^& F |, j$ v
'''字符串的对其操作''' & Y7 }5 C! s' O& x# 1.center 居中对齐 . A0 \$ i+ |) a6 z5 K! V6 z0 N7 Ds = 'hello,python'# u/ g* m: Q+ `3 c2 H
print(s.center(100, '*'))& r6 X- g ?# u- s
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# 2.ljust 左对齐. k0 Z' t1 e: V2 u. w
print(s.ljust(100, '*')) ( w6 v9 w8 ^; h& w3 V) Z% F& D2 m( E! a5 v, J8 E w* m
# 3.rjust 右对齐. w1 W) |! ^- H8 K/ L. K3 D. i
print(s.rjust(100, '*'))! Z7 z/ e, }, x, u6 G) V% ?9 V
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# 3.zfill 右对齐,左侧为0填充1 {' s i! ?3 N! A" i* O, {
print(s.zfill(100))) A9 d K! N$ s g0 A: p$ R$ F
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7.字符串的劈分操作* U( k* d- f t2 `" F* Z+ Y& ~0 }
方法 作用+ v1 r# @- y/ ^% T7 \* P
split() 返回字符串中的单词列表,使用sep作为分隔符字符串。sep用来分割字符串的分隔符。None(默认值)表示根据任何空格进行分割,并从结果中丢弃空字符串。maxsplit最大分割次数。-1(默认值)表示无限制。4 y* }$ o, f/ ?4 w7 p
rsplit() 返回字符串中的单词列表,使用sep作为分隔符字符串。sep用来分割字符串的分隔符。None(默认值)表示根据任何空格进行分割,并从结果中丢弃空字符串。maxsplit最大分割次数。-1(默认值)表示无限制。劈叉从绳子的末端开始,一直到前面。# I) l# `6 N1 V" L
# 字符串的劈分操作 split1 W: P8 [, P1 {* v7 D9 v
# 1. split从字符串左侧开始分割,默认值为空格字符串,返回值是一个列表+ C" }. \1 }2 X
# 以通过参数sep指定劈分字符串是劈分符 + v" a) ~' x6 B7 C( r# 通过maxsplit指定劈分字符串的最大劈分次数 ) z2 O/ y w. q6 g) ]+ G0 N/ t* O5 _$ e
s = 'hello#world#python'# C) B* }8 f8 ?
lst = s.split('#')/ S- K' f. i* d6 R/ Y0 r& W
print(lst). s4 I4 z8 U7 V3 m* y7 ^
s1 = 'hello|world|python' : b1 L- Y {! g' X n1 pprint(s1.split())+ B8 n: R2 R5 Z! E
print(s1.split(sep='|'))" P2 ?3 O- V, }9 e
print(s1.split()) 6 \( {+ }0 d; I4 n8 L: x! ^s1 = 'hello|world|python' " Q- C, Z/ V. v! V: ]" @( \$ rprint(s1.split()): g& f3 l F' w1 q# R+ s
print(s1.split(sep='|', maxsplit=1)) 6 B7 u& R7 F, P. }& @* Z# h7 I# 以参数sep 指定劈分字符串是劈分符0 U7 M s% y* U$ s
print('-----------------------') 6 U$ ^" M5 d2 h$ {! a* q: w6 c4 `8 t7 [
# 2.rsplit 从右侧开始劈分9 j- W% O2 L4 r3 S* s9 N- i
print(s1.rsplit(sep='|', maxsplit=1)) 2 R" B! U4 w# G9 r 2 ]' R, J( n9 `7 S4 Q# ?1 - N, b$ ?( [& m5 B7 W7 b2/ w. O3 a1 e7 L: T1 Y/ ?
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8.判断字符串的方法 / Q R6 O1 e, G* C方法 作用, H! [% q0 B; O: H1 n9 C
isidentifier() 判断字符串是合法标识符 ! H5 s$ Y2 c8 C" E1 M# j) kisspace() 判断字符串是否全部由空字符串组成(回车,换行,水平制表)' ]/ a. [3 J* m( Q# J, O, x
isalpha() 判断是否全部由字符组成# i) x A6 z/ _6 P8 ~9 D: {
isdecimal() 判断是否全部由十进制数字组成 $ E1 {- C" n' h( zisnumeric() 判断是否全部由数字组成 ; k. _9 P# n! \+ Qisalnum() 判断字符串是否全部由字母和数字组成0 ^9 m( e' v1 [! B6 H
# 1. isidentifier 判断字符串是合法标识符' `/ f7 J! |0 U8 @' R- W
s = 'hello, python' M7 i: f/ L& F2 S- Tprint('1.', s.isidentifier()) # False : i& `9 V g8 A% P$ sprint('2.', 'hello'.isidentifier()) # True ' C/ z9 _ R3 h9 q3 e0 _' A/ U3 _' t0 V0 l/ k5 a1 [! Z5 z
# 2. isspase 判断字符串是否全部由空字符串组成(回车,换行,水平制表)- c: p4 U: M2 |) z, K
print(' '.isspace()) % p+ G7 ]8 A4 X' _print('-----------------------')% ? {4 Q# c+ W' j3 J, @7 v. ?
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# 3. isalpha 判断是否全部由字符组成 8 I" B3 O2 R! f! J* m+ M% Jprint('fhaisdfh'.isalpha()) 0 J. C& p- Y2 b6 |$ \0 d9 o7 P1 u6 r
# 4. isnumeric 判断是否全部由数字组成+ z8 ~: K( U9 N! }% C2 u
print('67867'.isnumeric()) " B6 I/ O- [" y0 z- ?8 C: G* U# W! B5 M' R* |) \
# 5. isdecimal 判断是否全部由十进制数字组成' L7 h$ i3 O# B
print('78'.isdecimal()) 3 Q7 x. A. ^; [5 F$ Q: }3 L/ c2 _3 b3 e1 a! A
# 6. iszlnum 判断字符串是否全部由字母和数字组成 2 c- I7 m' D. B. ^# R$ {print('yut6786'.isalnum()) $ C+ g6 T, u, S2 t3 i4 G( {0 {2 B2 a4 W$ G# _$ a
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9.字符串的替换与合并操作9 s- K! W. h0 P* ]
方法 作用: {8 L1 F% B! ?- [" Y+ V/ i
replace() 返回一个副本,其中所有出现的子字符串old都被new替换。count替换的最大次数。-1(默认值)表示替换所有匹配项。如果给出了可选参数count,则只出现第一个count更换。& P3 Z6 H4 P7 v8 M% }
join() 连接任意数量的字符串。调用其方法的字符串被插入到每个给定字符串之间。结果以新字符串的形式返回。例如: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs' : b8 @" ]# u R1 ~# 1.字符串的替换 replace(), E& f0 Q4 ]8 |: K9 C% ]4 f
s = 'hello,Python' 3 G. F: Q( k7 [) C8 t( v9 Oprint(s.replace('Python', 'java'))7 \1 r% N* }; w/ h
s1 = 'hello,python,python,python' ! R0 _$ Z8 F' @print(s1.replace('python', 'java', 2)) ; I8 z S- O: ]
# 通过第三个参数指定最大替换次数+ G# ?, A& L: t
& k8 f3 U# D* e, W文章知识点与官方知识档案匹配,可进一步学习相关知识, w/ P9 m4 X! X. j" \. E1 F+ X
———————————————— : p( b$ [2 @( R T3 F版权声明:本文为CSDN博主「北极的三哈」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。7 f* o" L2 l; X+ p/ Y3 V
原文链接:https://blog.csdn.net/m0_68744965/article/details/126314178 ! \" M; l }0 S. N7 o/ f 0 C. I) V4 X8 c i8 v/ D( _ 0 X2 ?0 I- s' n& R