Internet相关 URL编码
互联网相关 URL编码
互联网 URL
按照标准，URL中只能出现US-ASCII字符，假如有其它类型的字符，必须对其进行URL编码
URL encode规则：
把 URL 转成 application/x-www-form-urlencoded
MIME格式,标准 http://www.ietf.org/rfc/rfc1738.txt
- 所有 大小写英文字母 ， 数字都通过，不需要转码
- “-”,"_",".","!","~","*","\","(",")" 不需要转码
- ",","/","?",":","@","&","=","+","$","," 必须转码
- 空格变成 "+"
- 编码规则是 char 变成 "%**"
- 规则1，2和3的冲突，你可以根据1，2或者3，应该都work