20CN网络安全小组论坛 - 编程破解 - 请高手给指点下，这个错误怎么改

论坛: 编程破解标题: 请高手给指点下，这个错误怎么改

作者: glypk [glypk]

论坛用户

#include <iostream>
using namespace std;
typedef unsigned short USHORT;
typedef unsigned long ULONG;
short int Divider(
unsigned short valone,
unsigned short valtwo);
int main()
{
USHORT one,two;
short int answer;
cout << "Enter two number.\n Number one: ";
cin >> one;
cout << "Number two: ";
cin >> two;
answer= Divider (one,two);
if (answer > -1)
cout << "Answer: " << answer;
else
cout << "Error,can't divide by zero!";
return 0;
}

Linking...
ex1.obj : error LNK2001: unresolved external symbol "short __cdecl Divider(unsigned short,unsigned short)" (?Divider@@YAFGG@Z)
Debug/example1.exe : fatal error LNK1120: 1 unresolved externals
执行 link.exe 时出错.

example1.exe - 1 error(s), 0 warning(s)
对着书找了半天也不知道哪错了

地主发表时间: 07-02-11 19:12

回复: jhkdiy [jhkdiy]

版主

代码:


//程序不能只有声明而没有具体实现，
//也就是说你不能骗编译器，明明说有这个函数给它
//但你只是说说，却没有真正给它。
//下面代码在Dev-C++ 4.9.9.2通过。 

#include <iostream>
using namespace std;
typedef unsigned short  USHORT;
typedef unsigned long  ULONG;

//这里是声明 
short int Divider(unsigned short  valone, unsigned short  valtwo);

int main()
{
    USHORT one,two;
    short int answer;
    
    cout << "Enter two number.\n Number one: ";
    cin >> one;
    cout << "Number two: ";
    cin >> two;
    
    answer= Divider(one,two);
    if (answer > -1)
       cout << "Answer: " << answer;
    else
        cout << "Error,can't divide by zero!";
    
    return 0;
}

//这里是实现 
short int Divider(unsigned short  valone, unsigned short  valtwo)
{
      return 0;      
}

B1层发表时间: 07-02-12 21:07

论坛: 编程破解