URL full code to prevent colon from being encoded

Problem Description: Sometimes we need to encode a whole URL, but if the whole code is direct, the colon will be encoded;

Example: http://192.168.1.85:8080/files/1\\paper\\2015-06-05\\150602 Polymer website Paper submission Bug-20150605164633294.doc This string, if encoded directly, the HTTP link will be invalidated.

Solution: I think of the solution is to use long text in place of the characters that need to be retained, encoded instead of back;

public static string Restoreurl (string url) {
		//modifier backslash
				url=url.replace ("\ \", "/");
				Use long text instead to keep the string
				url=url.replace (":", "_*colon*_")
				. Replace ("/", "_*slash*_")
				. replace ("\ \", "_* Backslash*_ "). Replace ("
				"," _*blank*_ "). Replace (
				"? "," _*question*_ ")
				. Replace (" = "," _*equal*_ ")
				. replace (";", "_*semicolon*_");
				Encode the
				url=encodingutil.urlencode (URL);
				Url=url.replace ("_*colon*_", ":"). Replace ("
				_*slash*_", "/").
				replace ("_*backslash*_", "\ \").
				Replace ("_*blank*_", "%20")
				. Replace ("_*question*_", "?")
				. Replace ("_*equal*_", "=")
				. Replace ("_*semicolon*_", ";");
		
		return URL;
	}