char 相关问题。
#include<stdio.h>

int main(void)
{
char a[] = "this is char usage\n ";
char b[] ='c';
printf("%s",a);
printf("%c\n",b);
return 0;



哪里错了？？
[解决办法]

 char b[] ="c";
printf("%c\n",b[0]);
//或者
 char b ='c';
printf("%c\n",b);