C + + to write a simple calculator program _c language

First look at my development environment

System: Win7
Computer: Dell
Operating Environment: VS2015
Language: C + +

Simple Calculator Code

Arithmetic #include "stdafx.h" #include <iostream> #include <stdio.h> using namespace std;
  void Add () {printf ("Enter the Addends to be evaluated (for example, a b)");
  int adda=0, addb=0,addc=0;
  Cin >> Adda;
  Cin >> ADDB;
  ADDC = ADDA+ADDB;
   
cout <<adda<< "plus" <<addb<< "equals" << addc << Endl;
  void Substraction () {printf ("Enter the meiosis to calculate (for example, a b)");
  int Suba = 0, Subb = 0, subc = 0;
  Cin >> Suba;
  Cin >> Subb;
  SUBC = Suba-subb;
cout <<suba<< "minus" <<subb<< "equals" << subc << Endl;
  void multiplication () {printf ("Enter the multiplier to be calculated (for example, a B) \ n");
  int Mula = 0, mulb = 0, Mulc = 0;
  Cin >> Mula;
  Cin >> Mulb;
  MULC = mula*mulb;
cout <<mula<< "Multiply" <<mulb<< "equals" << mulc << Endl;
  void Division () {printf ("Enter the divisor to calculate (for example, a B) \ n");
  int DSA = 0, DSB = 0, DSC = 0,dsd=0;
  CIN >> DSA;
  CIN >> DSB;
  DSC = DSA/DSB;
  DSD = DSA%DSB; cout <<dsa<< "except" <<d sb<< "equals" << DSC << "Yu" <<dsd<<endl;
  } void operation ()//operational function {printf ("input data Select to do that operation \ n");
   
  printf ("Input 0 Select exit, 1 Do addition, 2 do subtraction, 3 do multiplication, 4 do division (keep remainder) \ n");
  int operatione = 0;
  Cin >> Operatione;
  cout << Endl;
    try {if (Operatione = = 1) {//addition add ();
    else if (Operatione = 2) {//subtraction substraction ();
    else if (Operatione = 3) {//multiplication multiplication ();
    else if (Operatione = 4) {//Departure division ();
    else if (Operatione = = 0) {exit (0);
    else {throw 1;
  The catch (int i) {cout << "input error" << Endl;
} operation ();
  int main () {printf ("Welcome to use this calculator");
  Operation ();
return 0;
 }

Code is simpler, I hope you can enjoy