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@ -0,0 +1,470 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Newtonsoft.Json;
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namespace JobCreateFee
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{
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/// <summary>
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/// string 拓展
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/// </summary>
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public static class StringExtension
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{
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/// <summary>
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/// 隐藏中间字符串
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static string GetHideCentre(this string str)
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{
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if (str.Length > 8)
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{
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return string.Format("{0}***{1}", str.Substring(0, 4), str.Substring(str.Length - 4, 4));
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}
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else if (str.Length > 5)
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{
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return string.Format("{0}***{1}", str.Substring(0, 2), str.Substring(str.Length - 2, 2));
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}
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else if (str.Length > 4)
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{
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return string.Format("{0}***{1}", str.Substring(0, 1), str.Substring(str.Length - 1, 1));
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}
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else
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{
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return GetHideHead(str);
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}
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}
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/// <summary>
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/// 隐藏头部
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static string GetHideHead(this string str)
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{
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var length = 1;
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length = length > str.Length ? str.Length : length;
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if (str.Length < 4)
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{
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length = 1;
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if (str.Length == 1)
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{
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return str;
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}
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return "**" + str.Substring(str.Length - length, length);
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}
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length = 4;
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return "****" + str.Substring(str.Length - length, length);
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}
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/// <summary>
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/// 用于判断是否为空字符
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsNull(this string s)
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{
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return s == null || (s.Trim().Length == 0);
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}
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/// <summary>
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/// 用于判断是否为非空字符
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsNotNull(this string s)
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{
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return !s.IsNull();
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}
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#region 加密算法
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/// <summary>
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/// DES对称加密字符串
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/// </summary>
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/// <param name="encryptString">待加密的字符串</param>
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/// <param name="key">加密密钥,要求为16位</param>
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/// <returns>加密成功返回加密后的字符串，失败返回源串</returns>
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public static string DESEncrypt(this string encryptString, string key)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(key);
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//用于对称算法的初始化向量（默认值）。
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byte[] rgbIV = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
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byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
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Aes dCSP = Aes.Create();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Convert.ToBase64String(mStream.ToArray());
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// DES对称解密字符串
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/// </summary>
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/// <param name="decryptString">待解密的字符串</param>
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/// <param name="key">解密密钥，要求16位</param>
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/// <returns></returns>
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public static string DESDecrypt(this string decryptString, string key)
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{
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try
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{
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//用于对称算法的初始化向量（默认值）
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byte[] Keys = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
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byte[] rgbKey = Encoding.UTF8.GetBytes(key);
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Convert.FromBase64String(decryptString);
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Aes DCSP = Aes.Create();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Encoding.UTF8.GetString(mStream.ToArray());
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}
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catch
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{
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return decryptString;
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}
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}
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/// <summary>
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/// 将字符串转换成MD5加密字符串
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/// </summary>
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/// <param name="orgStr"></param>
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/// <returns></returns>
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public static string ToMd5(this string orgStr)
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{
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using (var md5 = MD5.Create())
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{
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var encoding = Encoding.UTF8;
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var encryptedBytes = md5.ComputeHash(encoding.GetBytes(orgStr));
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var sb = new StringBuilder(32);
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foreach (var bt in encryptedBytes)
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{
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sb.Append(bt.ToString("x").PadLeft(2, '0'));
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}
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return sb.ToString().ToLower();
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}
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}
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#endregion
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/// <summary>
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/// 获取扩展名
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static string GetExt(this string s)
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{
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var ret = string.Empty;
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if (!s.Contains('.')) return ret;
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var temp = s.Split('.');
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ret = temp[temp.Length - 1];
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return ret;
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}
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/// <summary>
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/// 验证QQ格式
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsQq(this string s)
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{
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return s.IsNull() || Regex.IsMatch(s, @"^[1-9]\d{4,15}$");
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}
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/// <summary>
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/// 将字符串根据分隔符转换我List<string>
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/// </summary>
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/// <param name="str"></param>
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/// <param name="split">分隔符</param>
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/// <returns></returns>
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public static List<string> ToListString(this string str, char split)
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{
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return new List<string>(str.Split(split));
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}
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/// <summary>
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/// 判断是否为有效的Email地址
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsEmail(this string s)
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{
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if (!s.IsNull())
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{
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//return Regex.IsMatch(s,
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// @"^(?("")("".+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))" +
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// @"(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,6}))$");
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const string pattern = @"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$";
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return Regex.IsMatch(s, pattern);
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}
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return false;
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}
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/// <summary>
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/// 判断是否是url
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsUrl(this string s)
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{
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if (!s.IsNull())
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{
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const string pattern = @"^(http://|https://)?((?:[A-Za-z0-9]+-[A-Za-z0-9]+|[A-Za-z0-9]+)\.)+([A-Za-z]+)[/\?\:]?.*$";
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return Regex.IsMatch(s, pattern);
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}
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return false;
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}
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/// <summary>
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/// 验证是否是合法的电话号码
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsPhone(this string s)
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{
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if (!s.IsNull())
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{
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return Regex.IsMatch(s, @"^\+?((\d{2,4}(-)?)|(\(\d{2,4}\)))*(\d{0,16})*$");
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}
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return true;
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}
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/// <summary>
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/// 验证是否是合法的手机号码
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsMobile(this string s)
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{
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if (!s.IsNull())
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{
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return Regex.IsMatch(s, @"^\+?\d{0,4}?[1][3-8]\d{9}$");
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}
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return false;
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}
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/// <summary>
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/// 验证是否是合法的邮编
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsZipCode(this string s)
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{
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if (!s.IsNull())
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{
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return Regex.IsMatch(s, @"[1-9]\d{5}(?!\d)");
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}
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return true;
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}
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/// <summary>
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/// 验证是否是合法的传真
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static bool IsFax(this string s)
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{
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if (!s.IsNull())
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{
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return Regex.IsMatch(s, @"(^[0-9]{3,4}\-[0-9]{7,8}$)|(^[0-9]{7,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)");
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}
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return true;
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}
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/// <summary>
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/// 检查字符串是否为有效的int数字
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/// </summary>
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/// <param name="val"></param>
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/// <returns></returns>
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public static bool Isint(this string val)
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{
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if (IsNull(val))
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return false;
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int k;
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return int.TryParse(val, out k);
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}
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/// <summary>
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/// 字符串转数字，未转换成功返回0
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/// </summary>
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/// <param name="val"></param>
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/// <returns></returns>
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public static int ToInt(this string val)
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{
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if (IsNull(val))
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return 0;
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int k;
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return int.TryParse(val, out k) ? k : 0;
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}
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/// <summary>
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/// 判断是否是json字符串
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static bool IsJson(this string str)
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{
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try
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{
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if (str.IsNull())
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return false;
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JsonConvert.DeserializeObject(str);
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return true;
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}
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catch
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{
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return false;
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}
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}
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/// <summary>
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/// 检查字符串是否为有效的INT64数字
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/// </summary>
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/// <param name="val"></param>
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/// <returns></returns>
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public static bool IsInt64(this string val)
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|
{
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if (IsNull(val))
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return false;
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long k;
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|
return long.TryParse(val, out k);
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}
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/// <summary>
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|
/// 验证是否是身份证
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|
/// </summary>
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/// <param name="ID"></param>
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/// <returns></returns>
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public static bool IsCardId(this string ID)
|
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|
|
|
{
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|
|
var r = false;
|
|
|
|
|
if (IsNull(ID))
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r = false;
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if (ID.Length == 15)
|
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|
|
|
{
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var date = $"19{ID.Substring(6, 2)}-{ID.Substring(8, 2)}-{ID.Substring(10, 2)}";
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|
|
DateTime dt;
|
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|
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return DateTime.TryParse(date, out dt);
|
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|
|
|
}
|
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|
|
|
else if (ID.Length == 18)
|
|
|
|
|
{
|
|
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|
|
var date = $"{ID.Substring(6, 4)}-{ID.Substring(10, 2)}-{ID.Substring(12, 2)}";
|
|
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|
|
DateTime dt;
|
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|
|
return DateTime.TryParse(date, out dt);
|
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|
|
|
}
|
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|
else { r = false; }
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|
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|
|
return r;
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|
|
|
|
}
|
|
|
|
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|
|
|
|
/// <summary>
|
|
|
|
|
/// 检查字符串是否为有效的double
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="val"></param>
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
public static bool IsDecimal(this string val)
|
|
|
|
|
{
|
|
|
|
|
if (IsNull(val))
|
|
|
|
|
return false;
|
|
|
|
|
double d;
|
|
|
|
|
return double.TryParse(val, out d);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
///检测字符串是否是时间类型
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="val"></param>
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
public static bool IsDateTime(this string val)
|
|
|
|
|
{
|
|
|
|
|
if (IsNull(val))
|
|
|
|
|
return false;
|
|
|
|
|
DateTime d;
|
|
|
|
|
return DateTime.TryParse(val, out d);
|
|
|
|
|
}
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// 字符串转时间 非时间返回空
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="val"></param>
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
public static DateTime? ToDateTime(this string val)
|
|
|
|
|
{
|
|
|
|
|
if (val.IsDateTime())
|
|
|
|
|
{
|
|
|
|
|
return DateTime.Parse(val);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
return null;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// 将时间类型字符转时间戳
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="Val"></param>
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
public static long ToTimestamp(this string Val)
|
|
|
|
|
{
|
|
|
|
|
var time = Val.ToDateTime();
|
|
|
|
|
return time != null ? ((DateTime)time).ToTimeStamp() : 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// 从左边截取N个字符
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="val"></param>
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
public static string GetLeftStr(this string val, int count = 0)
|
|
|
|
|
{
|
|
|
|
|
if (count > val.Length)
|
|
|
|
|
return null;
|
|
|
|
|
|
|
|
|
|
return val.Substring(0, count);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
///从右边截取N个字符
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="val"></param>
|
|
|
|
|
/// <param name="count"></param>
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
public static string GetRightStr(this string val, int count = 0)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
if (count > val.Length)
|
|
|
|
|
return null;
|
|
|
|
|
|
|
|
|
|
return val.Substring(val.Length - count, count);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
}
|
hanxuntao
2 years ago