如何理解这段代码，如何生成tree型结构的

Question

 function createTree(deep) {
            let children = {};
            let tree = { id: 0 ,children};
            for (let i = 1; i <= deep; i++) {
                children.id = i;
                children.children = {}
                children = children.children; //不太理解这里
            }
            return tree;
        }
        let tree = createTree(6);

看他每次循环都只生成了一个节点，怎么把他遍历到tree中的呢？

Answer 1

每次到children = children.children,children重新赋值，children代表的是children.children位置的数据，及children指向children.children