vue多级树形菜单插件

vue.js 树形菜单插件，自定义添加编辑删除树形结构菜单。

同时，支持异步加载数据，增加节点，删除节点，编辑节点。

HTML 代码：

<div id="vm">
        <div class="layui-elem-field">
            <form class="layui-form" action="">
                <div class="layui-form-item">
                    <label class="layui-form-label">树形插件</label>
                    <div class="layui-input-block">
                        <item v-bind:tree='treeData' id='tree'></item>
                    </div>
                </div>
            </form>
        </div>

        <!-- 添加节点 -弹窗-->
        <div class="layui-row" id="addNodelayer" style="display: none;margin-top: 30px">
            <form class="layui-form" action="" method="post" enctype="multipart/form-data" id="formid1">
                <div class="layui-form-item">
                    <label class="layui-form-label">节点名称</label>
                    <div class="layui-input-inline">
                        <input type="text" name="name" required lay-verify="required" autocomplete="off" class="layui-input">
                    </div>
                </div>
                <div class="layui-form-item">
                    <div class="layui-input-block">
                        <span class="layui-btn" lay-submit lay-filter="addDataBtn">确认添加</span>
                    </div>
                </div>
            </form>
        </div>

        <!-- 编辑编辑 -弹窗-->
        <div class="layui-row" id="editNodelayer" style="display: none;margin-top: 30px">
            <form class="layui-form" action="" method="post" enctype="multipart/form-data" id="formid2">
                <div class="layui-form-item">
                    <label class="layui-form-label">分类名称</label>
                    <div class="layui-input-inline">
                        <input type="text" name="className" v-model='name' required lay-verify="required" autocomplete="off" class="layui-input">
                    </div>
                </div>

                <div class="layui-form-item">
                    <div class="layui-input-block">
                        <span class="layui-btn" lay-submit lay-filter="editDataBtn">确认修改</span>
                    </div>
                </div>
            </form>
        </div>
    </div>
    <template id='treeTemplate'>
        <ul class="tree-box">
            <li class="tree-item" v-for='(v,i) in tree'> 
                <div class="tree-info-box">
                    <i  class="layui-icon" :class="[ tree[i].open ? 'layui-icon-triangle-r' :' layui-icon-triangle-d']" v-if="isFolder(v)" @click="toggle(i)"></i>
                    <i v-else  class="layui-icon layui-icon-file"></i>
                    <span :data-id="i" class="title-name"  @click="changeCheck(i)" >{{v.name}}</span> 
                    <div class="tree-btn-group">
                        <span class="add-node-btn node-btn" @click="addNode(i)"> <i class="layui-icon layui-icon-add-1"></i> 添加下一级</span>
                        <span class="edit-node-btn node-btn" @click="editNode(i)"> <i class="layui-icon layui-icon-edit"></i> 编辑</span>
                        <span class="del-node-btn node-btn" @click="delNode(i)"> <i class="layui-icon layui-icon-delete"></i> 删除</span>
                    </div> 
                </div>
                <item v-bind:tree='v.child' v-show="tree[i].open" style="margin-left: 20px;"></item>
            </li>
        </ul> 
    </template>

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