自己想编一个抽签程序,出了点问题,本来是要随机抽取的,结果成了一个一个输出,还有小黑框的警告:libpng warning: iCCP: Not recognizing known sRGB profile that has been edited.代码如下,求解答:[mw_shl_code=c,true]#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
int main()
{
int a;
srand((unsigned)time(NULL));
a=rand()%5;
if(a=1)
MessageBox(NULL,"a","抽到的人是",MB_OK);
if(a=2)
MessageBox(NULL,"b","抽到的人是",MB_OK);
if(a=3)
MessageBox(NULL,"c","抽到的人是",MB_OK);
if(a=4)
MessageBox(NULL,"d","抽到的人是",MB_OK);
if(a=5)
MessageBox(NULL,"e","抽到的人是",MB_OK);
system("pause");
return 0;
}[/mw_shl_code]
|