- (void)deleteInputEmotion {

    // 发通知
    [[NSNotificationCenter defaultCenter] postNotificationName:DJEmotionDidDeletedNotification object:nil];
    

}

// 注册监听删除表情通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onReceiveEmotionDidDeletedNotification) name:DJEmotionDidDeletedNotification object:nil];

/** 接收到删除表情通知 */
- (void)onReceiveEmotionDidDeletedNotification {

    [self.textView deleteBackward];

}