js中escape,unescape,encodeURI,enc

escape:ASCII字母、数字、@*/+这几个字符不会被编码,由于js是unicode编码，中文会被编为unicode

encodeURI:ASCII字母、数字、~!@#{{TEXTPLACEHOLDER}}*()=:/,;?+'不会被编码

encodeURIComponent:ASCII字母、数字、~!*()'不会被编码

encodeURIComponent会把'http://'编码成"http%3A%2F%2F"而

参考:http://www.cnblogs.com/season-huang/p/3439277.html