一枚小小的弹出输入框
__weak typeof(self) weakSelf = self;
ZYInputAlertView *alertView = [ZYInputAlertView alertView];
alertView.placeholder = @"输入开心的事儿···";
[alertView confirmBtnClickBlock:^(NSString *inputString) {
weakSelf.inputLabel.text = inputString;
}];
[alertView show];