let mapObj = {                            
	text: 'name',
	value: 'id',
	parentId: 'parent_id',
	children: 'children'
};  //级联要求的数据格式   属性值是调接口得来的数据对应字段，此处不调接口，写死模拟一下
let data = [
	{
		name: '江苏省',
		id: 1,
		parent_id: 0,
		children: [
			{
				name: '南京市',
				id: 11,
				parent_id: 1,
				children: [
					{
						name: '秦淮区',
						id: 111,
						parent_id: 11,
						children: [
						]
					},
					{
						name: '鼓楼区',
						id: 112,
						parent_id: 11,
						children: [
						]
					},		
				]
			},
		  {
				name: '扬州市',
				id: 12,
				parent_id: 1,
				children: [
					{
						name: '邗江区',
						id: 121,
						parent_id: 11,
						children: [
						]
					}              
				]
		  },
		]
	},
	{
		name: '江西省',
		id: 2,
		parent_id: 0,
		children: []
	}
]
function converTree(tree, map) {
	const result = [];
	tree.forEach((item) => {
		let value = item[ map.value ];
		let text = item[ map.text ];
		let parentId = item[map.parentId]
		let children = item[ map.children ];
		if (children) {
		  children = converTree(children, map);
		}
		result.push({ value, text, parentId, children });
	})
	return result
}
converTree(data , mapObj )
console.log(converTree(data , mapObj ))