首先来看下本人的开发环境

系统：win7
电脑：dell
运行环境：vs2015
语言：c++

简单计算器代码

//四则运算 #include "stdafx.h" #include<iostream> #include<stdio.h> using namespace std; void add() { printf("输入要计算的加数（例如a b）\n"); int adda=0, addb=0,addc=0; cin >> adda; cin >> addb; addc = adda+addb; cout <<adda<<"加"<<addb<< "等于" << addc << endl; } void substraction() { printf("输入要计算的减数（例如a b）\n"); int suba = 0, subb = 0, subc = 0; cin >> suba; cin >> subb; subc = suba-subb; cout <<suba<<"减"<<subb<< "等于" << subc << endl; } void multiplication() { printf("输入要计算的乘数（例如a b）\n"); int mula = 0, mulb = 0, mulc = 0; cin >> mula; cin >> mulb; mulc = mulaIT之家mulb; cout <<mula<<"乘"<<mulb<< "等于" << mulc << endl; } void division() { printf("输入要计算的除数（例如a b）\n"); int dsa = 0, dsb = 0, dsc = 0,dsd=0; cin >> dsa; cin >> dsb; dsc = dsa/dsb; dsd = dsa%dsb; cout <<dsa<<"除"<<dsb<< "等于" << dsc <<"余"<<dsd<<endl; } void operation()//运算函数 { printf("输入数据选择做那种运算\n"); printf("输入0选择退出，1做加法，2做减法，3做乘法，4做除法（保留余数）\n"); int operatione = 0; cin >> operatione; cout << endl; try { if (operatione == 1) { //加法 add(); } else if (operatione == 2) { //减法 substraction(); } else if (operatione == 3) { //乘法 multiplication(); } else if (operatione == 4) { //出发 division(); } else if (operatione == 0) { exit(0); } else { throw 1; } } catch (int i) { cout << "输入错误" << endl; } operation(); } int main() { printf("欢迎使用本计算器"); operation(); return 0; }

代码比较简单，希望大家能够喜欢