【求大神】这个程序对不对呢

#include <stdio.h>
int main()
{
char b;
int i=3,j=5;
float x=22.354,y=435.6789;
scanf("%c",b);
printf("ch=\'%c\',ASCII=%d\n",b,b);
printf("i=%d j=%d\n",i,j);
printf("%2.2f %3.2f\n",x,y);
}