求助：类模版==的操作符重载，请大家教教我这代码错哪了 - 数学建模社区-数学中国

#include<iostream>
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using namespace std;. t0 j% d* o* T F
template<class T>1 c# K$ P) Y4 n4 a0 f" b8 r- `
class Sample
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private:
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T n;
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public:7 g' q- V7 V& ]4 c, P9 ?+ E
Sample():n(0){}; I+ E3 S( y0 F7 o9 C- u
Sample(T a):n(a){}$ M$ l# j5 V- m3 S/ o1 x, t
friend bool operator== (const Sample<T>&,const Sample<T>&);
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};' X7 _' t$ y6 [; z
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int main()
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Sample<int> a(10),b(2);! w1 t. H( h+ F+ |1 y8 s; a
if(a==b)cout<<"true";
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else cout<<"false";; I6 U H4 J$ Q; ^
cout<<endl;) v0 q) {; p. r1 c+ x1 s0 z& t( j
system("pause");
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return 0;
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}
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template<class T>5 t8 K8 z: ]4 `! D
bool operator==(const Sample<T>& a,const Sample<T>& b)$ H5 j0 ~9 n+ V& k4 D& y; P4 B6 q
{
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if(a.n==b.n) v1 J+ X7 ? q( j; o
return true;9 j* R6 T( D$ S7 |# U
else return false;2 D ^1 A6 q; |3 V6 G
}

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