求助:Matlab程序为什么死循环
本帖最后由 清水流荷 于 2009-9-6 14:56 编辑A =
Columns 1 through 7
0 999999 999999 999999 999999 999999 999999
999999 0 999999 999999 999999 999999 999999
999999 999999 0 999999 999999 999999 999999
999999 999999 999999 0 999999 999999 999999
999999 999999 999999 999999 0 999999 999999
999999 999999 999999 999999 999999 0 999999
999999 999999 999999 999999 999999 999999 0
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
20 999999 999999 999999 999999 999999 999999
202 1200 999999 999999 999999 999999 999999
999999 999999 690 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 462 999999 999999
999999 999999 999999 690 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 70 999999
999999 999999 999999 999999 999999 999999 30
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
31 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 110 999999
999999 999999 999999 999999 999999 999999 20
Columns 8 through 14
999999 999999 999999 999999 999999 999999 20
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
0 999999 450 999999 999999 999999 999999
999999 0 80 999999 999999 999999 999999
450 80 0 1150 999999 999999 999999
999999 999999 1150 0 999999 999999 999999
999999 999999 999999 999999 0 306 999999
999999 999999 999999 999999 306 0 195
999999 999999 999999 999999 999999 195 0
999999 999999 999999 1100 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
3 999999 999999 999999 999999 999999 999999
999999 2 999999 999999 999999 999999 999999
999999 999999 999999 600 999999 999999 999999
999999 999999 999999 999999 10 999999 999999
999999 999999 999999 999999 999999 5 999999
999999 999999 999999 999999 999999 999999 10
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
Columns 15 through 21
202 999999 999999 999999 999999 999999 999999
1200 999999 999999 999999 999999 999999 999999
999999 690 999999 999999 999999 999999 999999
999999 999999 999999 999999 690 999999 999999
999999 999999 999999 462 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
1100 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
0 720 999999 999999 999999 999999 999999
720 0 520 999999 999999 999999 999999
999999 520 0 999999 170 999999 999999
999999 999999 999999 0 88 999999 999999
999999 999999 170 88 0 999999 160
999999 999999 999999 999999 999999 0 70
999999 999999 999999 999999 160 70 0
999999 999999 999999 999999 999999 999999 320
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
12 999999 999999 999999 999999 999999 999999
999999 42 999999 999999 999999 999999 999999
999999 999999 70 999999 999999 999999 999999
999999 999999 999999 10 999999 999999 999999
999999 999999 999999 999999 999999 10 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
Columns 22 through 28
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 70 999999 999999 999999 999999 999999
999999 999999 30 999999 999999 999999 999999
999999 999999 999999 999999 3 999999 999999
999999 999999 999999 999999 999999 2 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 600
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
320 999999 999999 999999 999999 999999 999999
0 160 999999 999999 999999 999999 999999
160 0 290 999999 999999 999999 999999
999999 290 0 999999 999999 999999 999999
999999 999999 999999 0 104 999999 999999
999999 999999 999999 104 0 301 999999
999999 999999 999999 999999 301 0 750
999999 999999 999999 999999 999999 750 0
999999 999999 999999 999999 999999 999999 606
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
62 999999 999999 999999 999999 999999 999999
999999 30 999999 999999 999999 999999 999999
999999 999999 20 999999 999999 999999 999999
Columns 29 through 35
999999 999999 31 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
10 999999 999999 999999 999999 999999 999999
999999 5 999999 999999 999999 999999 999999
999999 999999 10 999999 999999 999999 999999
999999 999999 999999 12 999999 999999 999999
999999 999999 999999 999999 42 999999 999999
999999 999999 999999 999999 999999 70 999999
999999 999999 999999 999999 999999 999999 10
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
606 999999 999999 999999 999999 999999 999999
0 194 999999 999999 999999 999999 999999
194 0 205 999999 999999 999999 999999
999999 205 0 201 999999 999999 999999
999999 999999 201 0 680 999999 999999
999999 999999 999999 680 0 480 999999
999999 999999 999999 999999 480 0 300
999999 999999 999999 999999 999999 300 0
999999 999999 999999 999999 999999 999999 220
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
999999 999999 999999 999999 999999 999999 999999
Columns 36 through 39
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 110 999999
999999 999999 999999 20
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
10 999999 999999 999999
999999 999999 999999 999999
999999 62 999999 999999
999999 999999 30 999999
999999 999999 999999 20
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
999999 999999 999999 999999
220 999999 999999 999999
0 210 999999 999999
210 0 420 999999
999999 420 0 500
999999 999999 500 0
for i=1:7
n=1;
D(i)=0;
d(i,1)=i;
for j=1:39
if A(i,j)~=999999 & A(i,j)~=0
D(i)=D(i)+A(i,j);
n=n+1;
d(i,n)=j;
break
end
while d(i,n)<25
l=d(i,n);
J=1:39;
J(J==i)=[];
J(J==l)=[];
for j=J
if A(l,j)~=999999 & A(l,j)~=0
D(i)=D(i)+A(l,j);
n=n+1;
d(i,n)=j;
break
end
end
end
end
end
D
d
本想在这基础上再多实现一些功能,结果现在就一直死循环了,问题出在哪呀?
PS:A是一个39*39的矩阵,对角线为0,部分元素在0——1000之间,剩余元素是无穷大,用999999表示。元素表示两地间距离,分铁路和公路两种,行标和列标按顺序表示一样的地点。矩阵是对称的。
此程序的目的是找出一组最优路线,使相关运费最短。 这要找错误挺复杂的,有没有可能是运行时间比较长,不一定是死循环出现。我编辑过运行3小时的程序
页:
[1]