本文实例为大家分享了vue实现树形菜单效果展示的具体代码，供大家参考，具体内容如下
<!DOCTYPE html>
<html>
<head>
<meta charset=\"UTF-8\">
<title>vue</title>
<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">
<link rel=\"stylesheet\" href=\"animate.css\">
<script src=\"vue.js\"></script>
<style>
*{
color:#585858;
}
#app{
min-height: 650px;
}
#app li{
list-style-type:none;
}
#app a{
text-decoration:none;
}
#app button{
width:100%;
}
#app ul{
padding:10px;
}
#app span{
cursor:pointer;
}
#tree{
border: 1px solid #ccc;
min-height: 650px;
width: 50%;
margin:0;
padding-top: 10px;
background-color:#f2f2f2;
position: absolute;
top:0;
left:0;
}
#tree li {
display: block;
padding: 0;
margin: 0;
border: 0;
border-bottom: 1px solid #e5e5e5;
min-height: 32px;
line-height:32px;
}
</style>
</head>
<body>
<div id=\'app\' @click=\'hideTree($event)\'>
<button @click.stop=\"show = !show\">点我</button>
<transition enter-active-class=\"animated fadeInLeft\" leave-active-class=\"animated fadeOutLeft\">
<item v-bind:tree=\'treeData\' id=\'tree\' v-if=\"show\"></item>
</transition>
</div>
<template id=\'tree-template\'>
<ul>
<li v-for=\'(v,i) in tree\'>
<span v-if=\"isFolder(v)\" @click=\"toggle(i)\">{{ tree[i].open ? \'-\' : \'+\' }}</span>
<a data-id=\"v.id\">{{v.city}}</a>
<item v-bind:tree=\'v.child\' v-show=\"tree[i].open\"></item>
</li>
</ul>
</template>
<script>
var data = [{\"id\":26,\"pid\":1,\"city\":\"四川省\"},{\"id\":30,\"pid\":1,\"city\":\"云南省\"},{\"id\":322,\"pid\":26,\"city\":\"成都\"},{\"id\":323,\"pid\":26,\"city\":\"绵阳\"},{\"id\":324,\"pid\":26,\"city\":\"阿坝\"},{\"id\":325,\"pid\":26,\"city\":\"巴中\"},{\"id\":326,\"pid\":26,\"city\":\"达州\"},{\"id\":327,\"pid\":26,\"city\":\"德阳\"},{\"id\":328,\"pid\":26,\"city\":\"甘孜\"},{\"id\":329,\"pid\":26,\"city\":\"广安\"},{\"id\":330,\"pid\":26,\"city\":\"广元\"},{\"id\":331,\"pid\":26,\"city\":\"乐山\"},{\"id\":332,\"pid\":26,\"city\":\"凉山\"},{\"id\":333,\"pid\":26,\"city\":\"眉山\"},{\"id\":334,\"pid\":26,\"city\":\"南充\"},{\"id\":335,\"pid\":26,\"city\":\"内江\"},{\"id\":336,\"pid\":26,\"city\":\"攀枝花\"},{\"id\":337,\"pid\":26,\"city\":\"遂宁\"},{\"id\":338,\"pid\":26,\"city\":\"雅安\"},{\"id\":339,\"pid\":26,\"city\":\"宜宾\"},{\"id\":340,\"pid\":26,\"city\":\"资阳\"},{\"id\":341,\"pid\":26,\"city\":\"自贡\"},{\"id\":342,\"pid\":26,\"city\":\"泸州\"},{\"id\":367,\"pid\":30,\"city\":\"昆明\"},{\"id\":378,\"pid\":30,\"city\":\"曲靖\"},{\"id\":3100,\"pid\":367,\"city\":\"盘龙区\"},{\"id\":3101,\"pid\":367,\"city\":\"五华区\"},{\"id\":3102,\"pid\":367,\"city\":\"官渡区\"},{\"id\":3103,\"pid\":367,\"city\":\"西山区\"},{\"id\":3104,\"pid\":367,\"city\":\"东川区\"},{\"id\":3105,\"pid\":367,\"city\":\"安宁市\"},{\"id\":3106,\"pid\":367,\"city\":\"呈贡县\"},{\"id\":3107,\"pid\":367,\"city\":\"晋宁县\"},{\"id\":3108,\"pid\":367,\"city\":\"富民县\"},{\"id\":3109,\"pid\":367,\"city\":\"宜良县\"},{\"id\":3110,\"pid\":367,\"city\":\"嵩明县\"},{\"id\":3111,\"pid\":367,\"city\":\"石林县\"},{\"id\":3112,\"pid\":367,\"city\":\"禄劝\"},{\"id\":3113,\"pid\":367,\"city\":\"寻甸\"},{\"id\":3189,\"pid\":378,\"city\":\"麒麟区\"},{\"id\":3190,\"pid\":378,\"city\":\"宣威市\"},{\"id\":3191,\"pid\":378,\"city\":\"马龙县\"},{\"id\":3192,\"pid\":378,\"city\":\"陆良县\"},{\"id\":3193,\"pid\":378,\"city\":\"师宗县\"},{\"id\":3194,\"pid\":378,\"city\":\"罗平县\"},{\"id\":3195,\"pid\":378,\"city\":\"富源县\"},{\"id\":3196,\"pid\":378,\"city\":\"会泽县\"},{\"id\":3197,\"pid\":378,\"city\":\"沾益县\"}];
var treeData = createTree({
idname:\'id\',
pidname:\'pid\',
rootid:1,
data:data
});
function createTree(arg){
var idname = arg.idname,
pidname = arg.pidname,
rootid = arg.rootid,
data = arg.data,
treeData = [];
var _createTree = function(id){
var ret = [];
var index = 0;
for(var i = 0; i < data.length; i++){
if(data[i][pidname] == id){
ret[index] = data[i];
ret[index].child = _createTree(data[i][idname]);
index++;
}
}
return ret;
}
var index = 0;
for(var i = 0; i < data.length; i++){
if(data[i][pidname] == rootid){
treeData[index] = data[i];
treeData[index].child = _createTree(data[i][idname]);
index++;
}
}
return treeData;
}
Vue.component(\'item\', {
template: \'#tree-template\',
props: [\'tree\'],
data: function () {
return {}
},
methods: {
toggle: function (i) {
this.tree[i].open = !this.tree[i].open;
this.$set(this.tree, i, this.tree[i]);
},
isFolder: function (data) {
return data.child && data.child.length
},
},
})
var vm = new Vue({
el: \'#app\',
data: {
treeData: treeData,
show:false,
},
methods: {
hideTree:function(e){
if(e.target.id == \'app\'){
console.log(137);
this.show = false;
}
}
},
created: function () {
function _addOpen(data) {
for (var i = 0; i < data.length; i++) {
data[i][\'open\'] = false;
if (data[i].child.length > 0) {
_addOpen(data[i].child);
}
}
}
_addOpen(this.treeData);
}
});
</script>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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