以下程序哪里错了

[xyj19820205]

#include <iostream>
#include <cstdlib>
using namespace std;

template <class Type>
int count(Type *s,int sz,const Type &which)
{
int n=0;
for(int i=0;i<sz;++i)
if(a[i]==which)
n++;
return n;
}

int main()
{
double a[]={10.0,20.0,30.0,40.0,50.0,30.0,70.0,80.0,30.0};
cout<<"count(a,9,30.0) should return 3:"
<<count(a,9,30.0)<<endl;
int b[]={10,20,30,40,50,30,70,80,30};
cout<<"count(b,9,30) should return 3:"
<<count(b,9,30)<<endl;
char c[]={'a','a','c','a'};
cout<<"count(c,4,'a') should return 3:"
<<count(c,4,'a')<<endl;

string d[]={"aa","aa","aa"};
cout<<"count(d,3,\"aa\") should return 3:"
<<count(d,3,string("aa"))<<endl;

string e[]={"bb","aa","aa"};
cout<<"count(e,3,\"aa\") should return 2:"
<<count(e,3,string("aa"))<<endl;

system("pause");
return 0;
}

[steel007]

#include <iostream>
#include <string>
~~~~~~~~~~~~~~~~~~~~~~此处加入#include
#include <cstdlib>
using namespace std;

template <class Type>
int count(Type *a,int sz,const Type &which)
~~~~~~~改为a,应该是手误写为s了吧？
{
int n=0;
for(int i=0;i<sz;++i)
if(a[i]==which)
n++;
return n;
}

int main()
{
double a[]={10.0,20.0,30.0,40.0,50.0,30.0,70.0,80.0,30.0};
cout<<"count(a,9,30.0) should return 3:"
<<count(a,9,30.0)<<endl;
int b[]={10,20,30,40,50,30,70,80,30};
cout<<"count(b,9,30) should return 3:"
<<count(b,9,30)<<endl;
char c[]={'a','a','c','a'};
cout<<"count(c,4,'a') should return 3:"
<<count(c,4,'a')<<endl;

string d[]={"aa","aa","aa"};
cout<<"count(d,3,\"aa\") should return 3:"
<<count(d,3,string("aa"))<<endl;

string e[]={"bb","aa","aa"};
cout<<"count(e,3,\"aa\") should return 2:"
<<count(e,3,string("aa"))<<endl;

system("pause");
return 0;
}

[insulator]

#include <iostream>
#include <cstdlib>
using namespace std;

template <class Type>
int count(Type *s,int sz, const Type& which)
{
int n=0;
for(int i=0;i<sz;++i)
if(s[i]==which)
n++;
return n;
}
int count(char*s[],int sz, char* which)
{
int n=0;
for(int i=0;i<sz;i++)
if(strcmp(s[i],which)==0)n++;
return n;
}

int main()
{
double a[]={10.0,20.0,30.0,40.0,50.0,30.0,70.0,80.0,30.0};
cout<<"count(a,9,30.0) should return 3:"
<<count(a,9,30.0)<<endl;
int b[]={10,20,30,40,50,30,70,80,30};
cout<<"count(b,9,30) should return 3:"
<<count(b,9,30)<<endl;
char c[]={'a','a','c','a'};
cout<<"count(c,4,'a') should return 3:"
<<count(c,4,'a')<<endl;

char* d[]={"aa","aa","aa"};
cout<<"count(d,3,\"aa\") should return 3:"
<<count(d,3,"aa")<<endl;

char* e[]={"bb","aa","aa"};
cout<<"count(e,3,\"aa\") should return 2:"
<<count(e,3,"aa")<<endl;

system("pause");
return 0;
}

[cenlmmx]

晕,太不仔细
加上#include <string>

[o1n]

#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;

template <class Type>
int count(Type *s,int sz, const Type& which)
{
int n=0;
for(int i=0;i<sz;++i)
if(s[i]==which)
n++;
return n;
}
int count(char*s[],int sz, char* which)
{
int n=0;
for(int i=0;i<sz;i++)
if(strcmp(s[i],which)==0)n++;
return n;
}

int main()
{
double a[]={10.0,20.0,30.0,40.0,50.0,30.0,70.0,80.0,30.0};
cout<<"count(a,9,30.0) should return 3:"
<<count(a,9,30.0)<<endl;
int b[]={10,20,30,40,50,30,70,80,30};
cout<<"count(b,9,30) should return 3:"
<<count(b,9,30)<<endl;
char c[]={'a','a','c','a'};
cout<<"count(c,4,'a') should return 3:"
<<count(c,4,'a')<<endl;

char* d[]={"aa","aa","aa"};
cout<<"count(d,3,\"aa\") should return 3:"
<<count(d,3,"aa")<<endl;

char* e[]={"bb","aa","aa"};
cout<<"count(e,3,\"aa\") should return 2:"
<<count(e,3,"aa")<<endl;

system("pause");
return 0;
}