How would I compare two strings if they are not equal?
如果它们不相等，我如何比较两个字符串？
2 个解决方案
#1
40
Just use isEqualToString and put an ! before the whole expression, like so:
只需使用isEqualToString并放入！在整个表达之前，像这样：
if (![self.passwordField.text isEqualToString: self.confirmPasswordField.text])
#2
2
Use the NSString compare method (or one of the more detailed variations).
使用NSString比较方法（或更详细的变体之一）。
#1
40
Just use isEqualToString and put an ! before the whole expression, like so:
只需使用isEqualToString并放入！在整个表达之前，像这样：
if (![self.passwordField.text isEqualToString: self.confirmPasswordField.text])
#2
2
Use the NSString compare method (or one of the more detailed variations).
使用NSString比较方法（或更详细的变体之一）。