小案例 - WebForm計算機

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1. 前台

 1 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Interface.aspx.cs" Inherits="Interface" %> 2  3 <!DOCTYPE html> 4  5 <html xmlns="http://www.w3.org/1999/xhtml"> 6 <head runat="server"> 7 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> 8     <title></title> 9     <script type="text/javascript">10         window.onload = function () {11             document.getElementById("btnJiSuan").onclick = function () {12                 document.getElementById("form1").submit();13             }14         }15     </script>16 </head>17 <body>18     <form id="form1" method="post" action="Interface.aspx">19         <table>20             <tr>21                 <td><input type="text" name="txtN1" value="<%=num1 %>" /></td>22             </tr>23             <tr>24                 <td>+</td>25             </tr>26             <tr>27                 <td><input type="text" name="txtN2" value="<%=num2 %>" /></td>28             </tr>29             <tr>30                 <td>=</td>31             </tr>32             <tr>33                 <td><input type="text" name="txtRes" value="<%=res %>" /></td>34             </tr>35             <tr>36                 <td><input type="button" value="計算" id="btnJiSuan" /></td>37             </tr>38         </table>39     </form>40 </body>41 </html>

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2. 後台

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Web; 5 using System.Web.UI; 6 using System.Web.UI.WebControls; 7  8 public partial class Interface : System.Web.UI.Page 9 {10     protected int num1;11     protected int num2;12     protected int res;13     protected void Page_Load(object sender, EventArgs e)14     {15         if (Request.HttpMethod.ToLower() == "post")16         {17             num1 = Convert.ToInt32(Request.Form["txtN1"]);18             num2 = Convert.ToInt32(Request.Form["txtN2"]);19             res = num1 + num2;20         }21     }22 }

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小案例 - WebForm計算機