我有一个小挑战。我使用下面的代码来连接一个NSString。在控制台上输出很好,在设备上它不起作用。我似乎无法弄清楚我错过了什么。NSString concat不能在设备上工作
- (void)loadContent {
getHTML = @"leap";
NSLog(@"getHTML start: %@", getHTML);
int showLeap = selectedLeap +1;
NSString *leapString = [NSString stringWithFormat:@"%d", showLeap];
if (showLeap<10) {
getHTML = [getHTML stringByAppendingString:@"0"];
}
getHTML = [getHTML stringByAppendingString:leapString];
getHTML = [getHTML stringByAppendingString:selectedMenu];
NSLog(@"getHTML complete: %@", getHTML);
在模拟器的输出为:
2015-06-03 12:11:57.619 iOS_TWW_EVOLUTION[917:582733] getHTML start: leap
2015-06-03 12:11:57.621 iOS_TWW_EVOLUTION[917:582733] getHTML complete: leap01_summary
在设备的输出是:
2015-06-03 12:15:40.341 iOS_TWW_EVOLUTION[917:582733] getHTML start: leap
2015-06-03 12:15:40.346 iOS_TWW_EVOLUTION[917:582733] getHTML complete: getHTML complete:
这将是有益的,如果你还可以打印上所有的警告变量showLeap和selectedMenu –
打开的内容,并检查什么,编译器会告诉你。 – gnasher729