摘要：
1:h头文件里@interface ViewController : UIViewController<UITextViewDelegate>继承接口UITextViewDelegatetextviewarea.delegate = self;-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString*)text //按return键隐藏虚拟键盘{ if ([text isEqualToString:@"\n"]) 阅读全文
