请教一下，我的这个C程序错在哪里。
#include<stdio.h>char char1;
char char2;
int main()
{
char1='*';
char2="*****";
printf("c%\n",char2);
printf("c%\n",char1);
printf("c%\n",char1);
printf("c%\n",char2);
printf("c%\n",char1);
printf("c%\n",char1);
printf("c%\n",char2);
return(0);
}
/*用*写一个高7行，宽5行的字母E*/
