代码在vc6.0里面可以运行，在vs2010里面，就会出现The variable‘c1’is being used without being initialized报错

Question

#include <stdio.h>
#include <stdlib.h>
void main()
{
char c1,c2;
printf("请随机输入一个大写字母:");
scanf("%c",c1);
c2=c1+32;
printf("%c\n",c2);
system("pause");
}

Answer 1

scanf("%c",c1);改成 scanf("%c",&c1);