首先设置TextField 或 TextView的 delegate
/UITextView - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text { if ([text isEqualToString:@"\n"]) { NSLog("点击return"); return NO; } return YES; } /UITextField - (BOOL)textFieldShouldReturn:(UITextField *)textField { NSLog("点击return"); return YES; }