Special character output in NSString Iphone

Question

NSString * url;
NSString * device;
NSString * API;
API      = @"http://www.test/";
device   = @"test123";
url      = [NSString stringWithFormat:@"%@update.json?dev=%20%20%20%@", API, device];

I want the final url to http://www.test/update.json?dev=%20%20%20%20test123 ; However the above I get only http://www.test/update.json?dev=22020test123 ; I want those %20 be part of literal string of url. How can I accomplish that?

Answer 1

要生成%符号，因为它是一个特殊字符，您需要为NSString中的每个%放入%% 。

Answer 2

put \\ before every special character. That should work.