題目內容:根據scanf()的返回值判斷scanf()是否成功讀入了指定的數據項數,使程序在用戶輸入123a時,能輸出如下運行果:123a You’re wrong!
#include<stdio.h>
#include<stdlib.h>
int main() {
int s1,a,b;
s1=scanf("%d %d",&a,&b);
if(s1==2)
printf("a= %d,b= %d\n",a,b);
else
printf("You're wrong!");
return 0;
}