在開發過android 現在改開發iOS，在文件上，真的iOS做得比android好很多。像是 About iOS App Programming 。 而關於iOS URL decode 及 encode的討論。其中什么是url encode参见 http://www.stringfunction.com/url-decode.html 官方文件 NSURL Class Reference NSString Class Reference Understanding characters A string object presents itself as an array of Unicode characters (Unicode is a registered trademark of Unicode, Inc.). You can determine how many characters a string object contains with the length method and can retrieve a specific character with the characterAtIndex: method. These two “primitive” methods provide basic access to a string object. Most use of strings, however, is at a higher level, with the strings being treated as single entities: You compare strings against one another, search them for substrings, combine them into new strings, and so on. If you need to access string objects character by character, you must understand the Unicode character encoding, specifically issues related to composed charac...
