????#region?Escape的加密、解密
????///?<summary>
????///?Escape的加密
????///?</summary>
????///?<param?name="str"></param>
????///?<returns></returns>
????public?static?string?Escape(string?str)
????{
????????if?(str?==?null)
????????????return?String.Empty;

????????StringBuilder?sb?=?new?StringBuilder();
????????int?len?=?str.Length;

????????for?(int?i?=?0;?i?<?len;?i++)
????????{
????????????char?c?=?str[i];

????????????//everything?other?than?the?optionally?escaped?chars?_must_?be?escaped?
????????????if?(Char.IsLetterOrDigit(c)?||?c?==?'-'?||?c?==?'_'?||?c?==?'/'?||?c?==?'\\'?||?c?==?'.')
????????????????sb.Append(c);
????????????else
????????????????sb.Append(Uri.HexEscape(c));
????????}

????????return?sb.ToString();
????}
????///?<summary>
????///?Escape的解密
????///?</summary>
????///?<param?name="str"></param>
????///?<returns></returns>
????public?static?string?UnEscape(string?str)
????{
????????if?(str?==?null)
????????????return?String.Empty;

????????StringBuilder?sb?=?new?StringBuilder();
????????int?len?=?str.Length;
????????int?i?=?0;
????????while?(i?!=?len)
????????{
????????????if?(Uri.IsHexEncoding(str,?i))
????????????????sb.Append(Uri.HexUnescape(str,?ref?i));
????????????else
????????????????sb.Append(str[i++]);
????????}

????????return?sb.ToString();
????}
????#endregion

轉(zhuǎn)載于:https://www.cnblogs.com/yuanjinhui123/archive/2009/05/13/1456107.html

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