var el = document.getElementById('container-id'); el.addEventListener('click', function(e) { var p = e.target.parentElement; var index = Array.prototype.indexOf.call(p.children, e.target); }

Just giving you an idea

 test test test test test 

export default { methods: { getIndex (e) { const parent = this.$refs.containBox.xxx // 上面我忘记xxx是什么了，反正可以获取父元素，console.log(this.$refs)看看 const index = Array.prototype.indexOf.call(parent.children, e.target) // ... } } }

Where does the index come from without a loop?? Where does the index refer to?

Use native document.queraySelectAlll to give li the same class name to get the li array. Now there is an index

I don’t quite understand what you mean. . . .
How to load list data without using v-for? To find the node sequence number according to the dom, you must also have the dom node. . .