int a ,bfloat x,ychar c1,c2scanf ("a=%d b=%d",&a,&b)//在键盘如何输入阿scanf (" %f %e",&x,&y)

#include<stdio.h>
int main()
{
int a ,b;
float x,y;
char c1,c2;
scanf ("%d %d",&a,&b);//在键盘如何输入阿scanf (" %f %f",&x,&y)
printf("a=%d,