谁帮忙做随机抽签程序?
# include & ltstdio.h & gt
# include & lttime.h & gt
char Rand();
int main()
{
FILE * fp
if((fp=fopen("result.txt "," w ")= = NULL)
{
Printf("文件创建失败!");
返回1;
}
fputc(Rand(),FP);
返回0;
}
char Rand()
{
srand(time(NULL));
return rand()% 25+65;
}
随机选择大写字母A-Z