Http://blog.sina.com.cn/s/blog_6f29e81f0101qwbk.html
"Problem description"
Today the request server returns a field that contains spaces, which the server developer accidentally taps into the data, so the client needs to filter out the spaces in the string.
"Problem Analysis"
1, using the NSString in theStringbytrimmingcharactersinset: [Nscharacterset Whitespacecharacterset]] method just remove the left and right side of the space;
2. Use NSString *strurl = [urlstringstringbyreplacingoccurrencesofstring: @ "" withstring:@ ""], you can remove the space, note that the generated strURL is Autorelease property, so do not have to release the strURL!
"Summary of Issues"
Use the Stringbyreplacingoccurrencesofstring method to remove the space, actually just do a character substitution operation, in addition to the space can also replace other characters.
Remove spaces (or replace with a string) in iOS string nsstring
