Question

C语言编程的问题！！！！！求高手指点！！！指出我错在哪....><

#include<iostream>
#include<string>
using namespace std;
int main()
{
int a[7]={75,80,83,85,86,30,0};
string name[7]={"数学","物理","外语","体育","人数","平均成绩","最低分数的科目"};
char*MeanLow[]={"人数","平均成绩","最低分数科目的成绩","最低分数的科目"};
int averageG=0;
for(int=0;i<5;i++);
{
averageG+=a[i];
}
averageG/=5;
int minNum=0,gradeMin=100;
for(int i=0;i<5;i++);
{
if(a[i]<gradeMin)
{
gradeMin=a[i];
minNum=i;
}
}
cout<<"原始信息如下："<<endl;
for (int i=0;i<7;i++);
{
cout<<name[i]<<":"<<a[i]<<endl;
}
cout<<"最低分数的科目："<<endl
<<endl<<"全班各科平均成绩如下："<<endl;
for (int i=0;i<5;i++);
{
cout<<name[i]<<":"<<a[i]<<endl;
}
cout<<"统计结果如下："<<endl;
cout<<MeanLow[0]<<":"<<a[5]<<endl;
cout<<MeanLow[1]<<":"<<averageG<<endl;
cout<<MeanLow[2]<<":"<<gradeMin<<endl;
cout<<MeanLow[3]<<":"<<name[minNum]<<endl;
return 0;
}
Compiling...
Cpp1.cpp
D:\ll\Cpp1.cpp(10) : error C2513: 'int' : no variable declared before '='
D:\ll\Cpp1.cpp(10) : error C2065: 'i' : undeclared identifier
D:\ll\Cpp1.cpp(25) : error C2374: 'i' : redefinition; multiple initialization
D:\ll\Cpp1.cpp(16) : see declaration of 'i'
D:\ll\Cpp1.cpp(31) : error C2374: 'i' : redefinition; multiple initialization
D:\ll\Cpp1.cpp(16) : see declaration of 'i'
Error executing cl.exe.
出现这四个问题，，请帮忙解决一下。。

Answer 1

#include<iostream>
#include<string>
using namespace std;
int main()
{
int a[7]={75,80,83,85,86,30,0};
string name[7]={"数学","物理","外语","体育","人数","平均成绩","最低分数的科目"};
char*MeanLow[]={"人数","平均成绩","最低分数科目的成绩","最低分数的科目"};
int averageG=0;
for(int=0;i<5;i++);//少了 i ,多了;
{
averageG+=a[i];
}
averageG/=5;
int minNum=0,gradeMin=100;
for(int i=0;i<5;i++); //多了;
{
if(a[i]<gradeMin)
{
gradeMin=a[i];
minNum=i;
}
}
cout<<"原始信息如下："<<endl;
for (int i=0;i<7;i++); //多了;
{
cout<<name[i]<<":"<<a[i]<<endl;
}
cout<<"最低分数的科目："<<endl
<<endl<<"全班各科平均成绩如下："<<endl;
for (int i=0;i<5;i++); //多了;
{
cout<<name[i]<<":"<<a[i]<<endl;
}
cout<<"统计结果如下："<<endl;
cout<<MeanLow[0]<<":"<<a[5]<<endl;
cout<<MeanLow[1]<<":"<<averageG<<endl;
cout<<MeanLow[2]<<":"<<gradeMin<<endl;
cout<<MeanLow[3]<<":"<<name[minNum]<<endl;
return 0;
}

追问

但是我把你说的都改了，还是有三个错误呀。。

追答

// 123.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include<iostream>
#include<string>
using namespace std;

using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{

int a[7]={75,80,83,85,86,30,0};
string name[7]={"数学","物理","外语","体育","人数","平均成绩","最低分数的科目"};
char*MeanLow[]={"人数","平均成绩","最低分数科目的成绩","最低分数的科目"};
int averageG=0;
for(int i=0;i<5;i++)//少了 i ,多了;
{
averageG += a[i];
}
averageG/=5;
int minNum=0,gradeMin=100;
for(int i=0;i<5;i++)  //多了;
{
if(a[i]<gradeMin)
{
gradeMin=a[i];
minNum=i;
}
}
cout<<"原始信息如下："<<endl;
for (int i=0;i<7;i++)    //多了;
{
cout<<name[i]<<":"<<a[i]<<endl;
}
cout<<"最低分数的科目："<<endl
<<endl<<"全班各科平均成绩如下："<<endl;
for (int i=0;i<5;i++)    //多了;
{
cout<<name[i]<<":"<<a[i]<<endl;
}
cout<<"统计结果如下："<<endl;
cout<<MeanLow[0]<<":"<<a[5]<<endl;
cout<<MeanLow[1]<<":"<<averageG<<endl;
cout<<MeanLow[2]<<":"<<gradeMin<<endl;
cout<<MeanLow[3]<<":"<<name[minNum]<<endl;
getchar();
return 0;




}

还有什么错，我改了之后 ，没有问题呀

追问

这就是出现的错误

Answer 2

for(int=0;i<5;i++);

应为

for(int i=0;i<5;i++)

后面的for循环语句最后都多了分号

Answer 3

for(int=0;i<5;i++); ----- 改为for(int i =0;i<5;i++) // 少了i， 多了；

for(int i=0;i<5;i++); --- for循环后不要加；

Answer 4

for(int i=0;i<5;i++);

追问

但是还是有错误啊。。~~~~(>_<)~~~~

追答

上面有人给你回答了，很简单的错误，语法上就是这几个错误

Answer 5

你还是把编译出错的代码贴上来吧