// 根据父级编号获取 父级的父级的子级
function getParent(tree , parentId ){
    var menuList = []
    var list = [];
   treeFindPath(tree,menuList);
    for (const menuListElement of menuList) {
        if(menuListElement.menuId == parentId){
            for (const menuListElement1 of menuList) {
                if (menuListElement1.parentId == menuListElement.menuId){
                    list.push(menuListElement1);
                }
            }
        }
    }
}


// 树形转 list
function  treeFindPath(tree, path = []) {
    if (!tree) return []
    for (const data of tree) {
        path.push(data)
        this.treeFindPath(data.list, path)
    }
    return path
}