C++编写一个加减乘除开方乘方计算器c/c++m045864023的博客-

#include<iostream> #include<cmath> using namespace std; void Addition(double a,double b) {     cout<<a+b<<endl; } void Subtraction(double a,double b) { if(a>b)         cout<<a-b<<endl; else         cout<<"-"<<b-a<<endl; } void Multiplication(double a,double b) {           cout<<a*b<<endl; } void Division(double a,double b) {           cout<<a/b<<endl; } void Root(double a) {     cout<<sqrt(a)<<endl; } void Involution(double a,double b) {           cout<< pow(a,b)<<endl; } int main() { int x; double a = 0.0,b = 0.0;     cout<<"0代表加法n"<<"1代表减法n"<<"2代表乘法n"<<"3代表除法n"<<"4代表根号n"<<"5代表平方n"<<"6代表退出计算n"<<endl;     cout<<"请输入计算方式的代号:t";     cin>>x;          cout<<"已为您转入计算空间"<<x<<"."<<endl; do { switch(x) { case 0: {                 cout<<"请输入:t";                 cin>>a>>b; Addition(a,b); break; } case 1: {                 cout<<"请输入:t";                 cin>>a>>b; Subtraction(a,b); break; } case 2: {                 cout<<"请输入:t";                 cin>>a>>b; Multiplication(a,b); break; } case 3: {                 cout<<"请输入:t";                 cin>>a>>b; Division(a,b); break; } case 4: {                 cout<<"请输入:t";                 cin>>a; Root(a); break; } case 5: {                 cout<<"请输入:t";                 cin>>a>>b; Involution(a,b); break; } case 6: break; } } while(x); } 

上面这幅图展示的是乘方运行结果。