用函数收藏第12页

　　/// <summary>
/// 得到站点用户IP
/// </summary>
/// <returns></returns>
public static string getUserIP()
{
return HttpContext.Current.Request.ServerVariables[REMOTE_ADDR].ToString();
}

/// <summary>
/// 去除字符串最后一个,号
/// </summary>
/// <param name=chr>:要做处理的字符串</param>
/// <returns>返回已处理的字符串</returns>
public static string Lost(string chr)
{
if (chr == null chr == string.Empty)
{
return ;
}
else
{
return chr;
}
}

/// <summary>
/// 去除字符串第一个/号
/// </summary>
/// <param name=chr>要做处理的字符串</param>
/// <returns>返回已处理的字符串</returns>
public static string lostfirst(string chr)
{
string flg = ;
if (chr != string.Empty chr != null)
{
if (chr.Substring(0, 1) == /)
flg = chr.Replace(chr.Substring(0, 1), );
else
flg = chr;
}
return flg;
}

/// <summary>
/// 替换html中的特殊字符
/// </summary>
/// <param name=theString>需要进行替换的文本。</param>
/// <returns>替换完的文本。</returns>
public static string HtmlEncode(string theString)
{
theString = theString.Replace(>, >);
theString = theString.Replace(<, <);
theString = theString.Replace( , );
theString = theString.Replace( , );
theString = theString.Replace(\, );
theString = theString.Replace(\, );
theString = theString.Replace(\n, <br/> );
return theString;
}

/// <summary>
/// 恢复html中的特殊字符
/// </summary>
/// <param name=theString>需要恢复的文本。</param>
/// <returns>恢复好的文本。</returns>
public static string HtmlDiscode(string theString)
{
theString = theString.Replace(>, >);
theString = theString.Replace(<, <);
theString = theString.Replace( , );
theString = theString.Replace( , );
theString = theString.Replace(, \);
theString = theString.Replace(, \);
theString = theString.Replace(<br/> , \n);
return theString;
}



/// <summary>
/// 生成随机数字
/// </summary>
/// <param name=length>生成长度</param>
/// <returns></returns>
public static string Number(int Length)
{
return Number(Length, false);
}

/// <summary>
/// 生成随机数字
/// </summary>
/// <param name=Length>生成长度</param>
/// <param name=Sleep>是否要在生成前将当前线程阻止以避免重复</param>
/// <returns></returns>
public static string Number(int Length, bool Sleep)
{
if (Sleep)
System.Threading.Thread.Sleep(3);
string result = ;
System.Random random = new Random();
for (int i = 0; i < Length; i++)
{
result += random.Next(10).ToString();
}
return result;
}
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