MD5加密以及字符串剪切
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using System;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
/// <summary>
///MD5Helper 的摘要说明
/// </summary>
public static class MD5Helper
{
/// <summary>
/// 使用md5进行加密,转化为64位的string,并返回加密后的字符串==wcd/2014-05-30 14:15
/// </summary>
/// <param name="str">要加密的字符串</param>
public static string MD5Encoding(this string str)
{
string reuslt = "";
MD5 md5 = new MD5CryptoServiceProvider();
UTF8Encoding utf8 = new UTF8Encoding();
reuslt = Convert.ToBase64String(md5.ComputeHash(utf8.GetBytes(str)));
return "woai" + reuslt + "wcd";
}
/// <summary>
/// 使用md5进行加密,转化为64位的string,并返回加密后的字符串==wcd/2014-05-30 14:15
/// </summary>
/// <param name="str">要加密的字符串</param>
public static string MD5Encoding64(this string str)
{
string reuslt = "";
MD5 md5 = new MD5CryptoServiceProvider();
UTF32Encoding utf8 = new UTF32Encoding();
reuslt = Convert.ToBase64String(md5.ComputeHash(utf8.GetBytes(str)));
return "woai" + reuslt + "wcd";
}
/// <summary>
/// 移除Html标记
/// </summary>
/// <param name="content"></param>
/// <returns></returns>
public static string RemoveHtml(string content)
{
string regexstr = @"<[^>]*>";
return Regex.Replace(content, regexstr, string.Empty, RegexOptions.IgnoreCase);
}
/// <summary>
/// 剪切字符串,并去掉最后的“,”字符
/// </summary>
/// <param name="strcut">字符串</param>
/// <param name="intcut">剪切长度</param>
/// <param name="showpoint">是否显示"..."</param>
/// <returns></returns>
public static string CutString(string strcut, int intcut, bool showpoint)
{
string bakstr = RemoveHtml(strcut);
if (bakstr.Length <= 0)
{
return "无标题";
}
if (bakstr.Length > intcut)
{
bakstr = bakstr.Substring(0, intcut);
if (showpoint)
{
if (bakstr.Substring(bakstr.Length - 1) == ",")
{
bakstr = bakstr.Substring(0, bakstr.Length - 1);
}
bakstr += "...";
}
}
if (bakstr.Length > 0)
if (bakstr.Substring(bakstr.Length - 1) == ",")
{
bakstr = bakstr.Substring(0, bakstr.Length - 1);
}
return bakstr;
}
}
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
/// <summary>
///MD5Helper 的摘要说明
/// </summary>
public static class MD5Helper
{
/// <summary>
/// 使用md5进行加密,转化为64位的string,并返回加密后的字符串==wcd/2014-05-30 14:15
/// </summary>
/// <param name="str">要加密的字符串</param>
public static string MD5Encoding(this string str)
{
string reuslt = "";
MD5 md5 = new MD5CryptoServiceProvider();
UTF8Encoding utf8 = new UTF8Encoding();
reuslt = Convert.ToBase64String(md5.ComputeHash(utf8.GetBytes(str)));
return "woai" + reuslt + "wcd";
}
/// <summary>
/// 使用md5进行加密,转化为64位的string,并返回加密后的字符串==wcd/2014-05-30 14:15
/// </summary>
/// <param name="str">要加密的字符串</param>
public static string MD5Encoding64(this string str)
{
string reuslt = "";
MD5 md5 = new MD5CryptoServiceProvider();
UTF32Encoding utf8 = new UTF32Encoding();
reuslt = Convert.ToBase64String(md5.ComputeHash(utf8.GetBytes(str)));
return "woai" + reuslt + "wcd";
}
/// <summary>
/// 移除Html标记
/// </summary>
/// <param name="content"></param>
/// <returns></returns>
public static string RemoveHtml(string content)
{
string regexstr = @"<[^>]*>";
return Regex.Replace(content, regexstr, string.Empty, RegexOptions.IgnoreCase);
}
/// <summary>
/// 剪切字符串,并去掉最后的“,”字符
/// </summary>
/// <param name="strcut">字符串</param>
/// <param name="intcut">剪切长度</param>
/// <param name="showpoint">是否显示"..."</param>
/// <returns></returns>
public static string CutString(string strcut, int intcut, bool showpoint)
{
string bakstr = RemoveHtml(strcut);
if (bakstr.Length <= 0)
{
return "无标题";
}
if (bakstr.Length > intcut)
{
bakstr = bakstr.Substring(0, intcut);
if (showpoint)
{
if (bakstr.Substring(bakstr.Length - 1) == ",")
{
bakstr = bakstr.Substring(0, bakstr.Length - 1);
}
bakstr += "...";
}
}
if (bakstr.Length > 0)
if (bakstr.Substring(bakstr.Length - 1) == ",")
{
bakstr = bakstr.Substring(0, bakstr.Length - 1);
}
return bakstr;
}
}
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