Heim > Artikel > Web-Frontend > Detaillierte Erläuterung der Schritte zum Erstellen eines Baummenüs in Vue
Dieses Mal erkläre ich Ihnen ausführlich die Schritte zum Erstellen eines Baummenüs mit Vue. Was sind die Vorsichtsmaßnahmen zum Erstellen eines Baummenüs mit Vue? sehen.
<!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> <p 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> </p> <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>
Ich glaube, dass Sie die Methode beherrschen, nachdem Sie den Fall in diesem Artikel gelesen haben. Weitere spannende Informationen finden Sie in anderen verwandten Artikeln auf der chinesischen PHP-Website!
Empfohlene Lektüre:
Detaillierte Erläuterung der Schritte zur Verwendung des React-Native-Paket-Plug-In-Swipers
FIFO /LRU-Implementierungs-Caching-Algorithmus
Das obige ist der detaillierte Inhalt vonDetaillierte Erläuterung der Schritte zum Erstellen eines Baummenüs in Vue. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!