A simple calculator made in c language

[Akhil-kotipali]

No description provided.

[Halsjsko]

#include <stdio.h>
#include <stdlib.h>

int main() {
double num1, num2;
char op;

printf("输入第一个数字：");
scanf("%lf", &num1);

printf("输入运算符 (+、-、*、/): ");
scanf(" %c", &op);

printf("输入第二个数字：");
scanf("%lf", &num2);

switch (op) {
    case '+':
        printf("%.2lf + %.2lf = %.2lf\n", num1, num2, num1 + num2);
        break;
    case '-':
        printf("%.2lf - %.2lf = %.2lf\n", num1, num2, num1 - num2);
        break;
    case '*':
        printf("%.2lf * %.2lf = %.2lf\n", num1, num2, num1 * num2);
        break;
    case '/':
        if (num2!= 0) {
            printf("%.2lf / %.2lf = %.2lf\n", num1, num2, num1 / num2);
        } else {
            printf("除数不能为零！\n");
        }
        break;
    default:
        printf("无效的运算符！\n");
}

return 0;

}