菜鸟求助 error LNK2001: unresolved external symbol "int __cdecl count(int)" (?count@

2012-11-27 05:37:58 429 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Keil C51自定义启动代码时ERROR L127: UNRESOLVED EXTERNAL SYMBOL的根源分析与解决本文深入分析了Keil C51环境下自定义启动代码时出现的ERROR L127: UNRESOLVED EXTERNAL SYMBOL错误，详细解析了C51编译器的符号修饰规则与main函数调用约定，提供了完整的解决方案和实操步骤，帮助开发者快速解决链接器符号解析问题。阅读详情

error LNK2001: unresolved external symbol "int __cdecl count(int)" (?count@@YAHH@Z)

代码如下：
#include<iostream>
#include<Cmath>
using namespace std;
int score[50];
int num;
void input_score();
int get_max_score();
int get_min_score();
double get_avg_score();
double get_stdev_score();
int count(int);
void output_index(int);

int main(void)
{
int max_score,min_score;
cout<<"小组共有多少名同学？";
cin>>num;
cout<<endl<<"请输入学生成绩："<<endl;
input_score();
max_score=get_max_score();
cout<<endl<<"最高成绩为："<<max_score<<"，共有"<<count(max_score)<<"人。";
min_score=get_min_score();
cout<<endl<<"最低成绩为："<<min_score<<"，共有"<<count(min_score)<<"人。";
cout<<"平均成绩为："<<get_avg_score();

return 0;
}
void input_score()
{
int i;
for(i=1;i<=num;i++)
do
{
cout<<"输入第"<<i<<"位同学的成绩：";
cin>>score[i];
}while(score[i]<0||score[i]>100);
return;
}
int get_max_score()
{ int i;
for(i=1;i<=num;i++)
{
if(score[i]>=score[i+1])
score[i+1]=score[i];
}
return score[i];
}
int get_min_score()
{
int i;
for(i=1;i<=num;i++)
{
if(score[i]<=score[i+1])
score[i+1]=score[i];
}
return score[i];
}
double get_avg_score()
{
int sum=0,c,i;
for(i=1;i<=num;i++)
sum=score[i]+sum;
c=sum/num;
return c;
}
编译不报错连接就出错了，刚开始学c++ 求大大帮助啊

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