决策表中，视图树的图标固定展示是可以的，但是这个视图树内容有多个的时候除开首位能唯一区分以外，中间部分都不能唯一区分（定位全都是.mid-line-conn-background），所以想要引用CSS文件进去直接以序号列表的形式去展示，要如何实现？（想要实现效果：https://bbs.fanruan.com/thread-133741-1-1.html）目前已实现代码：$(".first-line-conn-background.f-s-n.f-auto.c-e.f-c").css({"background-image":"url(http://ip:89/webroot/help/css/custom/111.png)","background-repeat":"no-repeat","background-position":"center"});$(".mid-line-conn-background.f-s-n.f-auto.c-e.f-c").css({"background-image":"url(http://ip:89/webroot/help/css/custom/222.png)","background-repeat":"no-repeat","background-position":"center"});$(".last-line-conn-background.f-s-n.f-auto.c-e.f-c").css({"background-image":"url(http://ip:89/webroot/help/css/custom/333.png)","background-repeat":"no-repeat","background-position":"center"});
