escape/unescape : 不能对uri编码, 会把 / ? @ 进行编码
encodeURIComponet/decodeURIComponent : 对URI参数编码, 会把 / 进行编码
encodeURI/decodeURI : 对URI编码
From :
http://blog.163.com/free_for_all/blog/static/6871811201192441843281/From :
http://www.cnblogs.com/qiantuwuliang/archive/2009/07/19/1526687.html