凌晨3点，功夫不负有心人，已经累趴，效果终于出来：
看到树形结果，我们首先想到的是肯定需要用到递归了。
贴上代码：
<style scoped>
.form {
width: 50%;
}
</style> <template> <div class="form"> <el-tree
:data="data2"
show-checkbox
node-key="id"
default-expand-all
:props="defaultProps">
</el-tree>
</div> </template> <script>
export default {
data() {
return {
data2: [
{
fs: 0,
id: 1,
label: "一级 1",
children: [
{
fs: 0,
id: 4,
// disabled:true,
label: "二级 1-1",
children: [
{
fs: 1,
id: 9,
label: "三级 1-1-1"
},
{
fs: 1,
id: 10,
label: "三级 1-1-2"
}
]
}
]
},
{
fs: 0,
id: 2,
label: "一级 2",
children: [
{
fs: 0,
id: 5,
label: "二级 2-1"
},
{
fs: 1,
id: 6,
label: "二级 2-2"
}
]
},
{
fs: 0,
id: 3,
label: "一级 3",
children: [
{
fs: 0,
id: 7,
label: "二级 3-1"
},
{
fs: 0,
id: 8,
label: "二级 3-2"
}
]
}
],
defaultProps: {
children: "children",
label: "label"
}
};
},
methods: {
tickMenuIdFilter: function() {
var resultArr = new Array();
var getTickMenuId = function(obj) {
if (undefined == obj || null == obj || !obj instanceof Object) {
return;
}
if (obj.fs > 0) {
// console.log('obj',obj)
obj.disabled = true;
resultArr.push(obj.id);
}
if (null != obj.children && obj.children instanceof Array) {
for (let child of obj.children) {
getTickMenuId(child);
}
}
}; return {
filter: function(arr) {
if (!arr instanceof Array) {
return false;
}
resultArr = new Array();
for (let rootMenu of arr) {
getTickMenuId(rootMenu);
}
return resultArr;
}
};
}
},
created() {
this.tickMenuIdFilter().filter(this.data2);
console.log("data2", this.data2[0].children[0]);
}
};
</script>
备注：也许代码冗余，但是效果亲测出来啦