#include "stdio.h"
int main()
{float a,b; int i,j; char ch1,ch2;
printf("用格式输入函数输入a,b,i,j\n");
scanf("%f%f%d%d",&a,&b,&i,&j);
printf("输入字符函数输入ch1,ch2:");
关于printf函数正确的是getchar();
ch1=getchar();
ch2=getchar();
printf("a=%.2f;b=%.3f\n",a,b);
printf("i=%d;j=%d\n",i,j);
putchar('c');putchar('h');putchar('1');putchar('='); putchar(ch1);
putchar('\n');
putchar('c');putchar('h'); putchar('2');putchar('=');
putchar(ch2);
putchar('\n');
return 0;
}