相关方法扩展

/// <summary>
/// string 扩展
/// </summary>
public static class StringExtends
{
/// <summary>
/// 用于防止XSS的字符串转义
/// </summary>
/// <param name="txt"></param>
/// <returns></returns>
public static string SRUrlEncode(this string txt)
{
if (string.IsNullOrWhiteSpace(txt))
{
return txt;
}

return StringEncode.HtmlEncode(HttpUtility.UrlDecode(txt));
}

/// <summary>
/// 判断字符串是否为空(null)或是内容为空
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsNullOrEmpty(this string str)
{
return string.IsNullOrEmpty(str);
}
}