iOS json字符串转字典

一、先去掉转移‘/’

            NSMutableString *responseString = [NSMutableString stringWithString:@"xxxxxxx"];
            NSString *character = nil;
             for (int i = 0; i < responseString.length; i ++) {
                 character = [responseString substringWithRange:NSMakeRange(i, 1)];
                 if ([character isEqualToString:@"\\"])
                    [responseString deleteCharactersInRange:NSMakeRange(i, 1)];
             }

二、转字典

            NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
            NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];