字符编码

aspx页面：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CodeNew.aspx.cs" Inherits="CodeNew" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

form id="Form2" runat="server">

请输入字符串:

<asp:textbox id="textbox_1" runat="server"/>

<asp:button id="button_1" text="提交" runat="server"/>

<br/>

您输入的字符串长度:

<asp:label id="label_0" runat="server"/><br/>

字符码为: 

<asp:Label ID="Label_1" runat="server" Text="Label" Width="50px"></asp:Label><br/>

ascii码编码:

<asp:label id="label_2" runat="server"></asp:label><br/>

html编码为:

<asp:label id="label_3" runat="server"></asp:label><br/>

html编码以字符输出:

<asp:label id="label_4" runat="server"/><br/>

</div>

</form>

</body>

</html>

C#代码：

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Drawing;

using System.Text;

public partial class CodeNew : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

Response.Write("还没有输入任何字符!<br><br>");

}

else

{

Label_1.Text = "";

label_2.Text = "";

label_0.Text = Convert.ToString((textbox_1.Text).Length);

//ascii编码输出

bytefunction(textbox_1.Text);

//字符码输出

charfunction(textbox_1.Text);

//html编码输出

htmlfunction(textbox_1.Text);

}

//ascii编码输出函数

void bytefunction(string str)

{

byte[] mybytes = System.Text.Encoding.ASCII.GetBytes(str);

for (int i = 0; i < str.Length; i++)

{

label_2.Text += Convert.ToString(mybytes[i]) + " ";

}

//字符码输出函数

void charfunction(string str)

{

byte[] mybytes = System.Text.Encoding.ASCII.GetBytes(str);

char[] mychars = System.Text.Encoding.ASCII.GetChars(mybytes);

//label_2.text=new string(mychars);

for (int i = 0; i < str.Length; i++)

{

Label_1.Text += Convert.ToString(mychars[i]) + " ";

}

//html编码输出函数

void htmlfunction(string str)

{

string str_html = (Server.HtmlEncode(str));

label_3.Text = str_html;

label_4.Text = Server.HtmlEncode(str_html);

}

Fighting