objective-c - UILabel.text == self.NSString?

Question

My question may be simple for some to answer, but I'm relatively new to Objective C and Xcode. So I have a UILabel and I am running an if statement asking if UILabel is equal to self.NSString then do ... Here is the code.

if (UILabel.text == self.NSString)
{
//Do Something here...
}

I'm wondering if this would work, or what I have to do in order for this to start working. Thanks in advance.

Answer 1

使用类中的isEqualToString:方法NSString。

if([text isEqualToString:string])
{
  // Do something here.
}

Answer 2

比较字符串时，您应该使用

[UILabel.text isEqualToString:self.NSString]

== 只是比较指针，即使它们的内容相同，它们通常也会不同。isEqualToString 方法比较内容。