useEffect(() => {
        if (createIngVisible) {
            const timer =  setInterval(() => {
								// 动态清理（似乎没有）
                if(!createIngVisible || generatingPlaceholderIndex >= titlePlaceholderList.length - 1){
                    clearInterval(timer)
                }else {
                    setGeneratingPlaceholderIndex(generatingPlaceholderIndex >= titlePlaceholderList.length - 1 ? 0 : generatingPlaceholderIndex + 1);
                }
            }, 2000);
						// 清理定时器
            return () => {
                if ( timer) {
                    clearInterval(timer)
                }
            }
        } else {
            setGeneratingPlaceholderIndex(0);
        }
// 用到的内容需要监听否则不生效
    }, [createIngVisible, generatingPlaceholderIndex]);