Question

如下代码为什么在vc6下通不过？

// chat1.cpp : Defines the entry point for the console application.
//#include <iostream.h>
#include <iostream>

#include "stdafx.h"

/**
**
the while loop has executed 1 times
the while loop has executed 2 times
the while loop has executed 3 times
the while loop has executed 4 times
the while loop has executed 5 times
**
**/

//using namespace std;

int main(int argc, char* argv[])
{
int iterations = 0;
bool continue_loop = true;

while ( continue_loop != false )
{
iterations++;

cout<<"the while loop has executed "
<< iterations << " times\n";

if ( iterations == 5 )
continue_loop = false;
}

return 0;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++
居然说cout为定义，这是怎么回事？

Answer 1

使用iostream时, 应使用命名空间
你把命名空间语句注释掉了

另外, 在VC里, 最好还是用iostream.h
使用这个头文件, 不用命名空间