1.Encode URL String
var url = $(location).attr('href'); //get current url
//OR
var url = 'folder/index.html?param=#23dd&noob=yes'; //or specify one
var encodedUrl = encodeURIComponent(url);
console.log(encodedUrl);
//outputs folder%2Findex.html%3Fparam%3D%2323dd%26noob%3Dyes
2.Decode URL String
var url = $(location).attr('href'); //get current url
//OR
var url = 'folder%2Findex.html%3Fparam%3D%2323dd%26noob%3Dyes'; //or specify one
var decodedUrl = decodeURIComponent(url);
console.log(decodedUrl);
//outputs folder/index.html?param=#23dd&noob=yes
3.HTML URL Endoding References
space %20 ! %21 " %22 # %23 $ %24 % %25 & %26 ' %27 ( %28 ) %29 * %2A + %2B , %2C - %2D . %2E / %2F ... etc
测试网址：http://www.w3schools.com/tags/ref_urlencode.asp
原文网址：http://www.sitepoint.com/jquery-decode-url-string/