Objective c NSARRAY编码错误

有人注意到这个编码中有错误吗

NSString *textFilePath = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"txt"];
NSString *fileContents = [NSString stringWithContentsOfFile:textFilePath encoding:NSUTF8StringEncoding error:NULL];
practiceContent = [fileContents componentsSeparatedByString:@" "]; 

myScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
myScrollView.contentSize = CGSizeMake(320,960);
myScrollView.pagingEnabled = FALSE;
myScrollView.scrollEnabled = TRUE;
myScrollView.backgroundColor = [UIColor whiteColor];
[self.view addSubview:myScrollView];

UILabel *lblText = [[UILabel alloc] initWithFrame:CGRectMake(0,100,960,40)];
lblText.text = practiceContent;
[myScrollView addSubview:lblText];
[lblText release];

我正在尝试将text.txt中的文本传递到scrollview上的标签中…它在编译时不会显示任何错误

提前谢谢

practiceContent = [fileContents componentsSeparatedByString:@" "]; 
...
lblText.text = practiceContent;

practiceContent

是一个NSArray，但是

lblText.text

需要一个NSString。你应该简单地写

lblText.text = fileContents;

---

编译器没有抱怨的原因可能是您将

practiceContent

声明为

id

。如果类型为

id

，编译器将无法执行编译时类型检查。是否尝试插入NSLog（@“\n TEXT CONTENTS:%@”，practiceContent）；将内容输出到控制台的代码中？