Question

加法计算器：编程由键盘输入两个整数a和b，计算它们

Answer 1

给你个可以加减乘除的!!!
#include<stdio.h>
void main()
{
float a,b;
char c;
printf("\n");
scanf("%f%c%f",&a,&c,&b);
if(c=='+')
printf("%f\n",a+b);
else if(c=='-')
printf("%f\n",a-b);
else if(c=='*')
printf("%f\n",a*b);
else if(c=='/')
printf("%f\n",a/b);
}

Answer 2

main
{
int a,b;
int c;
scanf("%d，%d",&a,&b);
c=a+b;
printf("%d",c);

}