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;
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template<class T>0 k' b* q- z2 |
class Sample
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private:+ A z- I3 Q9 ^5 U0 ~
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public:2 h/ {- d/ H1 f3 Q
Sample():n(0){}
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Sample(T a):n(a){}. B( |/ E0 w1 f3 J* _+ r2 G7 ?& g
friend bool operator== (const Sample<T>&,const Sample<T>&);/ \, a* i7 [! s! p
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int main()
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{
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Sample<int> a(10),b(2);1 S [2 y* l' d4 A# G' H6 ~4 J
if(a==b)cout<<"true";" b4 V/ x6 G" Y; i# i
else cout<<"false";
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cout<<endl;" G5 G9 z" o/ f9 c6 b: W, ^. w# k% _
system("pause");- v$ `- | E( P$ \
return 0;
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}
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template<class T>3 _+ j' \2 t* x9 g% V' q; k
bool operator==(const Sample<T>& a,const Sample<T>& b)9 X% U! q" g0 U* k+ Q0 w( v5 g
{
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if(a.n==b.n)! M7 q( d# k3 w2 \, n5 j" P
return true;
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else return false;
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}

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