所謂的計畫趕不上變化，變化趕不上老闆的一句話

當初在面試的時候雖然已經很定位的跟面試主管說致力想學跟寫Android這一塊

但最近微軟的新7.5芒果機一推出來，由於客戶需求，主管派我去聽微軟開的msdn程式開發講座

課程目前還再進行，講座是免費的，有興趣的朋友趕快報名

我還很帥氣的上了鏡頭，照片連結(其實那個角度我覺得拍得很醜 = =")

所以既然都已經聽完課了，當然就要先來個hello mango了

不過微軟的開發工具跟往常一樣，都是安裝完後compiler就可以有hello word的介面

所以我就寫一個Hello 計算機來測試看看囉!!! 我主要是仿微軟內建的計算計算方式，而且把功能更簡化(反正只是測試用的)

我特別把註解寫得很清楚，讓剛程式入門的新手，能更明確的了解程式是怎麼一回事。由於這是我第一次寫C#這種語言，若有錯的地方請不另請指教。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;

namespace Calc
{
 public partial class MainPage : PhoneApplicationPage
 {
 public string number = "";      //用來顯示輸入的數字
 public long temp = 0;           //存放暫時的運算元
 public double equal = 0;        //存放等於的結果
 public char oper = ' ';         //存放運算元
 public bool operClick = false;  //用來判別是否有重複按壓運算子做運算子更換

 // Constructor
 public MainPage()
 {
 InitializeComponent();
 }

 private void btn0_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = ""; //預防一開始的0可以無限點擊變成00000....
 number += 0;                    //輸入的數字
 temp = int.Parse(number);       //字串轉成整數的數字
 PageTitle.Text = number;        //顯示在顯示器上
 operClick = false;              //無重複按壓運算子
 }

 private void btn1_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 1;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn2_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 2;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn3_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 3;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn4_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 4;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn5_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 5;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn6_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 6;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn7_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 7;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn8_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 8;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btn9_Click(object sender, RoutedEventArgs e)
 {
 if (number == "0") number = "";
 number += 9;
 temp = int.Parse(number);
 PageTitle.Text = number;
 operClick = false;
 }

 private void btnClear_Click(object sender, RoutedEventArgs e)
 {
 number = "";
 temp = 0;
 equal = 0;
 oper = ' ';
 operClick = false;
 PageTitle.Text = "0";
 }

 private void btnAdd_Click(object sender, RoutedEventArgs e)
 {
 if (operClick)  //重複按壓運算子
 {
 oper = '+'; //更換運算子
 }
 else
 {
 switch (oper)   //先前按壓的運算子進行運算
 {
 case '+':
 equal = equal + temp;
 break;
 case '-':
 equal = equal - temp;
 break;
 case '*':
 equal = equal * temp;
 break;
 case '/':
 if (temp == 0) break;   //處理分母為零的例外
 equal = equal / temp;
 break;
 case '=':   //之前按壓等於時不須做任何動作
 break;
 default:    //一開始沒有先前運算子
 equal = temp;
 break;
 }

 number = equal.ToString();  //將等於的結果轉成字串
 PageTitle.Text = number;    //顯示在顯示器上
 oper = '+';                 //儲存這次按壓的運算元
 number = "";
 }

 operClick = true;//已按壓運算子並做完運算
 }

 private void btnSub_Click(object sender, RoutedEventArgs e)
 {
 if (operClick)
 {
 oper = '-';
 }
 else
 {
 switch (oper)
 {
 case '+':
 equal = equal + temp;
 break;
 case '-':
 equal = equal - temp;
 break;
 case '*':
 equal = equal * temp;
 break;
 case '/':
 if (temp == 0) break;
 equal = equal / temp;
 break;
 case '=':
 break;
 default:
 equal = temp;
 break;
 }

 number = equal.ToString();
 PageTitle.Text = number;
 oper = '-';
 number = "";
 }

 operClick = true;
 }

 private void btnMulti_Click(object sender, RoutedEventArgs e)
 {
 if (operClick)
 {
 oper = '*';
 }
 else
 {
 switch (oper)
 {
 case '+':
 equal = equal + temp;
 break;
 case '-':
 equal = equal - temp;
 break;
 case '*':
 equal = equal * temp;
 break;
 case '/':
 if (temp == 0) break;
 equal = equal / temp;
 break;
 case '=':
 break;
 default:
 equal = temp;
 break;
 }

 number = equal.ToString();
 PageTitle.Text = number;
 oper = '*';
 number = "";
 }

 operClick = true;
 }

 private void btnDiv_Click(object sender, RoutedEventArgs e)
 {
 if (operClick)
 {
 oper = '/';
 }
 else
 {
 switch (oper)
 {
 case '+':
 equal = equal + temp;
 break;
 case '-':
 equal = equal - temp;
 break;
 case '*':
 equal = equal * temp;
 break;
 case '/':
 if (temp == 0) break;
 equal = equal / temp;
 break;
 case '=':
 break;
 default:
 equal = temp;
 break;
 }

 number = equal.ToString();
 PageTitle.Text = number;
 oper = '/';
 number = "";
 }

 operClick = true;
 }

 private void btnEqual_Click(object sender, RoutedEventArgs e)
 {
 switch (oper)
 {
 case '+':
 equal = equal + temp;
 break;
 case '-':
 equal = equal - temp;
 break;
 case '*':
 equal = equal * temp;
 break;
 case '/':
 if (temp == 0) break;
 equal = equal / temp;
 break;
 default:
 equal = temp;
 break;
 }

 number = equal.ToString();
 PageTitle.Text = number;
 oper = '=';
 number = "";
 }
 }
}

顯示結果就類似這樣，至於介面玩的人就自己拉一拉吧!!!