#include<stdio.h>
#include<window.h>
int main()
{
while(1)
{
 printf("*");
 sleep(100);
}
}
F:\Microsoft Visual Studio\Common\MSDev98\Bin\w1.c(2) : fatal error C1083: Cannot open include file: 'window.h': No such file or directory
执行 cl.exe 时出错.
运行结果：

#include <windows.h>
Sleep(100);

OK!~

Cannot open include file: 'window.h': No such file or directory

头文件出错，so你是不是应该装个VS助手之类的东西了。

#include<stdio.h>
#include<Windows.h>
int main()
{
    while(1)
    {
        printf("*");
        Sleep(100);
    }
}