C# 正則驗證

using System;
using System.Text.RegularExpressions;

namespace SG_VQCDataCollection
{
/// <summary>
/// 經過Framwork類庫中的Regex類實現了一些特殊功能數據檢查
/// </summary>
public class MetarnetRegex
{

private static MetarnetRegex instance = null;
public static MetarnetRegex GetInstance()
{
if (MetarnetRegex.instance == null)
{
MetarnetRegex.instance = new MetarnetRegex();
}
return MetarnetRegex.instance;
}
private MetarnetRegex()
{
}

/// <summary>
/// 判斷輸入的字符串只包含漢字
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsChineseCh(string input)
{
//Regex regex = new Regex("^[\一-\龥]+$");

//改了一下

Regex regex = new Regex("^[\u4e00-\u9fa5]+$");
return regex.IsMatch(input);
}

/// <summary>
/// 匹配3位或4位區號的電話號碼，其中區號能夠用小括號括起來，
/// 也能夠不用，區號與本地號間能夠用連字號或空格間隔，
/// 也能夠沒有間隔
/// \(0\d{2}\)[- ]?\d{8}|0\d{2}[- ]?\d{8}|\(0\d{3}\)[- ]?\d{7}|0\d{3}[- ]?\d{7}
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsPhone(string input)
{
string pattern = "^\\(0\\d{2}\\)[- ]?\\d{8}$|^0\\d{2}[- ]?\\d{8}$|^\\(0\\d{3}\\)[- ]?\\d{7}$|^0\\d{3}[- ]?\\d{7}$";
Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}

/// <summary>
/// 判斷輸入的字符串是不是一個合法的手機號
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsMobilePhone(string input)
{
Regex regex = new Regex("^13\\d{9}$");
return regex.IsMatch(input);

}

/// <summary>
/// 判斷輸入的字符串只包含數字
/// 能夠匹配整數和浮點數
/// ^-?\d+$|^(-?\d+)(\.\d+)?$
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsNumber(string input)
{
string pattern = "^-?\\d+$|^(-?\\d+)(\\.\\d+)?$";
Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}

/// <summary>
/// 匹配非負整數
///
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsNotNagtive(string input)
{
Regex regex = new Regex(@"^\d+$");
return regex.IsMatch(input);
}
/// <summary>
/// 匹配正整數
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsUint(string input)
{
Regex regex = new Regex("^[0-9]*[1-9][0-9]*$");
return regex.IsMatch(input);
}
/// <summary>
/// 判斷輸入的字符串字包含英文字母
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsEnglisCh(string input)
{
Regex regex = new Regex("^[A-Za-z]+$");
return regex.IsMatch(input);
}

/// <summary>
/// 判斷輸入的字符串是不是一個合法的Email地址
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsEmail(string input)
{
string pattern = @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$";
Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}

/// <summary>
/// 判斷輸入的字符串是否只包含數字和英文字母
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsNumAndEnCh(string input)
{
string pattern = @"^[A-Za-z0-9]+$";
Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}

/// <summary>
/// 判斷輸入的字符串是不是一個超連接
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsURL(string input)
{
//string pattern = @"http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?";
string pattern = @"^[a-zA-Z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\S*)?$";
Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}

/// <summary>
/// 判斷輸入的字符串是不是表示一個IP地址
/// </summary>
/// <param name="input">被比較的字符串</param>
/// <returns>是IP地址則爲True</returns>
public static bool IsIPv4(string input)
{

string[] IPs = input.Split('.');
Regex regex = new Regex(@"^\d+$");
for (int i = 0; i < IPs.Length; i++)
{
if (!regex.IsMatch(IPs[i]))
{
return false;
}
if (Convert.ToUInt16(IPs[i]) > 255)
{
return false;
}
}
return true;
}

/// <summary>
/// 計算字符串的字符長度，一個漢字字符將被計算爲兩個字符
/// </summary>
/// <param name="input">須要計算的字符串</param>
/// <returns>返回字符串的長度</returns>
public static int GetCount(string input)
{
return Regex.Replace(input, @"[\一-\龥/g]", "aa").Length;
}

/// <summary>
/// 調用Regex中IsMatch函數實現通常的正則表達式匹配
/// </summary>
/// <param name="pattern">要匹配的正則表達式模式。</param>
/// <param name="input">要搜索匹配項的字符串</param>
/// <returns>若是正則表達式找到匹配項，則爲 true；不然，爲 false。</returns>
public static bool IsMatch(string pattern, string input)
{
Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}

/// <summary>
/// 從輸入字符串中的第一個字符開始，用替換字符串替換指定的正則表達式模式的全部匹配項。
/// </summary>
/// <param name="pattern">模式字符串</param>
/// <param name="input">輸入字符串</param>
/// <param name="replacement">用於替換的字符串</param>
/// <returns>返回被替換後的結果</returns>
public static string Replace(string pattern, string input, string replacement)
{
Regex regex = new Regex(pattern);
return regex.Replace(input, replacement);
}

/// <summary>
/// 在由正則表達式模式定義的位置拆分輸入字符串。
/// </summary>
/// <param name="pattern">模式字符串</param>
/// <param name="input">輸入字符串</param>
/// <returns></returns>
public static string[] Split(string pattern, string input)
{
Regex regex = new Regex(pattern);
return regex.Split(input);
}

/// <summary>
/// 判斷輸入的字符串是不是合法的IPV6 地址
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsIPV6(string input)
{
string pattern = "";
string temp = input;
string[] strs = temp.Split(':');
if (strs.Length > 8)
{
return false;
}
int count = MetarnetRegex.GetStringCount(input, "::");
if (count > 1)
{
return false;
}
else if (count == 0)
{
pattern = @"^([\da-f]{1,4}:){7}[\da-f]{1,4}$";

Regex regex = new Regex(pattern);
return regex.IsMatch(input);
}
else
{
pattern = @"^([\da-f]{1,4}:){0,5}::([\da-f]{1,4}:){0,5}[\da-f]{1,4}$";
Regex regex1 = new Regex(pattern);
return regex1.IsMatch(input);
}

}
/* *******************************************************************
* 一、經過「:」來分割字符串看獲得的字符串數組長度是否小於等於8
* 二、判斷輸入的IPV6字符串中是否有「::」。
* 三、若是沒有「::」採用 ^([\da-f]{1,4}:){7}[\da-f]{1,4}$ 來判斷
* 四、若是有「::」 ，判斷"::"是否止出現一次
* 五、若是出現一次以上 返回false
* 六、^([\da-f]{1,4}:){0,5}::([\da-f]{1,4}:){0,5}[\da-f]{1,4}$
* ******************************************************************/
/// <summary>
/// 判斷字符串compare 在 input字符串中出現的次數
/// </summary>
/// <param name="input">源字符串</param>
/// <param name="compare">用於比較的字符串</param>
/// <returns>字符串compare 在 input字符串中出現的次數</returns>
private static int GetStringCount(string input, string compare)
{
int index = input.IndexOf(compare);
if (index != -1)
{
return 1 + GetStringCount(input.Substring(index + compare.Length), compare);
}
else
{
return 0;
}

}
}
}

 js：http://blog.csdn.net/jumtre/article/details/13775351