簡訊介面原始碼（實現按鈕倒計時的功能）

using system;

using system.data;
using system.configuration;
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;
public partial class _reg : system.web.ui.page 
protected void button1_click(object sender, eventargs e)
else
}}

<%@ page language="c#" autoeventwireup="true"  codefile="reg.aspx.cs" inherits="_reg" %>

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.text;
using system.io;
using system.net;
using system.text.regularexpressions;
public partial class regmsg : system.web.ui.page
}else}}
public string sendnotecode(string _tel, string _tucode)
}else
}else
return r;
}#region 生成隨機數
/// /// 生成隨機數字
/// 
/// 生成長度
/// 
public static string number(int length)
/// /// 生成隨機數字
/// 
/// 生成長度
/// 是否要在生成前將當前執行緒阻止以避免重複
/// 
public static string number(int length, bool sleep)
return result;
}/// /// 生成隨機字母與數字
/// 
/// 生成長度
/// 
public static string str(int length)
/// /// 生成隨機字母與數字
/// 
/// 生成長度
/// 是否要在生成前將當前執行緒阻止以避免重複
/// 
public static string str(int length, bool sleep)
;string result = "";
int n = pattern.length;
system.random random = new random(~unchecked((int)datetime.now.ticks));
for (int i = 0; i < length; i++)
return result;
}/// /// 驗證手機號
/// 
/// 
/// 
public static bool istel(string tel)
else
$";if (regex.match(tel, pattern, regexoptions.compiled).success)
else}}
/// /// 生成隨機純字母隨機數
/// 
/// 生成長度
/// 
public static string str_char(int length)
/// /// 生成隨機純字母隨機數
/// 
/// 生成長度
/// 是否要在生成前將當前執行緒阻止以避免重複
/// 
public static string str_char(int length, bool sleep)
;string result = "";
int n = pattern.length;
system.random random = new random(~unchecked((int)datetime.now.ticks));
for (int i = 0; i < length; i++)
return result;
}/// /// 生成隨機純字母隨機數
/// 
/// 生成長度
/// 是否要在生成前將當前執行緒阻止以避免重複
/// 
public static string str_charsamll(int length, bool sleep)
;string result = "";
int n = pattern.length;
system.random random = new random(~unchecked((int)datetime.now.ticks));
for (int i = 0; i < length; i++)
return result;
}#endregion
#region  get方式提交
public string getsend(string url, string bm)
#endregion
}

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