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295 lines
10 KiB
Markdown
295 lines
10 KiB
Markdown
## NavMenu 导航菜单
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为网站提供导航功能的菜单。
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### 顶栏
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适用广泛的基础用法。
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:::demo 导航菜单默认为垂直模式，通过`mode`属性可以使导航菜单变更为水平模式。另外，在菜单中通过`submenu`组件可以生成二级菜单。Menu 还提供了`background-color`、`text-color`和`active-text-color`，分别用于设置菜单的背景色、菜单的文字颜色和当前激活菜单的文字颜色。
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```html
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<el-menu :default-active="activeIndex" class="el-menu-demo" mode="horizontal" @select="handleSelect">
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<el-menu-item index="1">处理中心</el-menu-item>
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<el-submenu index="2">
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<template slot="title">我的工作台</template>
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<el-menu-item index="2-1">选项1</el-menu-item>
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<el-menu-item index="2-2">选项2</el-menu-item>
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<el-menu-item index="2-3">选项3</el-menu-item>
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<el-submenu index="2-4">
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<template slot="title">选项4</template>
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<el-menu-item index="2-4-1">选项1</el-menu-item>
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<el-menu-item index="2-4-2">选项2</el-menu-item>
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<el-menu-item index="2-4-3">选项3</el-menu-item>
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</el-submenu>
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</el-submenu>
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<el-menu-item index="3" disabled>消息中心</el-menu-item>
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<el-menu-item index="4"><a href="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>
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</el-menu>
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<div class="line"></div>
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<el-menu
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:default-active="activeIndex2"
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class="el-menu-demo"
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mode="horizontal"
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@select="handleSelect"
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background-color="#545c64"
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text-color="#fff"
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active-text-color="#ffd04b">
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<el-menu-item index="1">处理中心</el-menu-item>
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<el-submenu index="2">
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<template slot="title">我的工作台</template>
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<el-menu-item index="2-1">选项1</el-menu-item>
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<el-menu-item index="2-2">选项2</el-menu-item>
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<el-menu-item index="2-3">选项3</el-menu-item>
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<el-submenu index="2-4">
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<template slot="title">选项4</template>
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<el-menu-item index="2-4-1">选项1</el-menu-item>
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<el-menu-item index="2-4-2">选项2</el-menu-item>
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<el-menu-item index="2-4-3">选项3</el-menu-item>
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</el-submenu>
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</el-submenu>
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<el-menu-item index="3" disabled>消息中心</el-menu-item>
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<el-menu-item index="4"><a href="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>
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</el-menu>
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<script>
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export default {
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data() {
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return {
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activeIndex: '1',
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activeIndex2: '1'
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};
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},
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methods: {
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handleSelect(key, keyPath) {
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console.log(key, keyPath);
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}
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}
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}
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</script>
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```
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:::
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### 侧栏
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垂直菜单，可内嵌子菜单。
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:::demo 通过`el-menu-item-group`组件可以实现菜单进行分组，分组名可以通过`title`属性直接设定，也可以通过具名 slot 来设定。
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```html
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<el-row class="tac">
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<el-col :span="12">
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<h5>默认颜色</h5>
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<el-menu
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default-active="2"
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class="el-menu-vertical-demo"
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@open="handleOpen"
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@close="handleClose">
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<el-submenu index="1">
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<template slot="title">
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<i class="el-icon-location"></i>
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<span>导航一</span>
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</template>
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<el-menu-item-group>
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<template slot="title">分组一</template>
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<el-menu-item index="1-1">选项1</el-menu-item>
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<el-menu-item index="1-2">选项2</el-menu-item>
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</el-menu-item-group>
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<el-menu-item-group title="分组2">
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<el-menu-item index="1-3">选项3</el-menu-item>
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</el-menu-item-group>
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<el-submenu index="1-4">
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<template slot="title">选项4</template>
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<el-menu-item index="1-4-1">选项1</el-menu-item>
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</el-submenu>
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</el-submenu>
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<el-menu-item index="2">
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<i class="el-icon-menu"></i>
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<span slot="title">导航二</span>
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</el-menu-item>
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<el-menu-item index="3" disabled>
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<i class="el-icon-document"></i>
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<span slot="title">导航三</span>
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</el-menu-item>
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<el-menu-item index="4">
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<i class="el-icon-setting"></i>
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<span slot="title">导航四</span>
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</el-menu-item>
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</el-menu>
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</el-col>
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<el-col :span="12">
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<h5>自定义颜色</h5>
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<el-menu
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default-active="2"
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class="el-menu-vertical-demo"
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@open="handleOpen"
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@close="handleClose"
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background-color="#545c64"
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text-color="#fff"
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active-text-color="#ffd04b">
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<el-submenu index="1">
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<template slot="title">
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<i class="el-icon-location"></i>
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<span>导航一</span>
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</template>
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<el-menu-item-group>
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<template slot="title">分组一</template>
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<el-menu-item index="1-1">选项1</el-menu-item>
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<el-menu-item index="1-2">选项2</el-menu-item>
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</el-menu-item-group>
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<el-menu-item-group title="分组2">
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<el-menu-item index="1-3">选项3</el-menu-item>
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</el-menu-item-group>
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<el-submenu index="1-4">
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<template slot="title">选项4</template>
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<el-menu-item index="1-4-1">选项1</el-menu-item>
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</el-submenu>
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</el-submenu>
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<el-menu-item index="2">
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<i class="el-icon-menu"></i>
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<span slot="title">导航二</span>
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</el-menu-item>
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<el-menu-item index="3" disabled>
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<i class="el-icon-document"></i>
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<span slot="title">导航三</span>
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</el-menu-item>
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<el-menu-item index="4">
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<i class="el-icon-setting"></i>
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<span slot="title">导航四</span>
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</el-menu-item>
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</el-menu>
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</el-col>
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</el-row>
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<script>
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export default {
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methods: {
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handleOpen(key, keyPath) {
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console.log(key, keyPath);
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},
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handleClose(key, keyPath) {
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console.log(key, keyPath);
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}
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}
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}
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</script>
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```
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:::
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### 折叠
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:::demo
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```html
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<el-radio-group v-model="isCollapse" style="margin-bottom: 20px;">
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<el-radio-button :label="false">展开</el-radio-button>
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<el-radio-button :label="true">收起</el-radio-button>
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</el-radio-group>
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<el-menu default-active="1-4-1" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose" :collapse="isCollapse">
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<el-submenu index="1">
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<template slot="title">
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<i class="el-icon-location"></i>
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<span slot="title">导航一</span>
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</template>
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<el-menu-item-group>
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<span slot="title">分组一</span>
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<el-menu-item index="1-1">选项1</el-menu-item>
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<el-menu-item index="1-2">选项2</el-menu-item>
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</el-menu-item-group>
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<el-menu-item-group title="分组2">
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<el-menu-item index="1-3">选项3</el-menu-item>
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</el-menu-item-group>
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<el-submenu index="1-4">
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<span slot="title">选项4</span>
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<el-menu-item index="1-4-1">选项1</el-menu-item>
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</el-submenu>
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</el-submenu>
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<el-menu-item index="2">
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<i class="el-icon-menu"></i>
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<span slot="title">导航二</span>
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</el-menu-item>
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<el-menu-item index="3" disabled>
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<i class="el-icon-document"></i>
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<span slot="title">导航三</span>
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</el-menu-item>
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<el-menu-item index="4">
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<i class="el-icon-setting"></i>
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<span slot="title">导航四</span>
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</el-menu-item>
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</el-menu>
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<style>
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.el-menu-vertical-demo:not(.el-menu--collapse) {
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width: 200px;
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min-height: 400px;
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}
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</style>
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<script>
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export default {
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data() {
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return {
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isCollapse: true
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};
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},
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methods: {
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handleOpen(key, keyPath) {
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console.log(key, keyPath);
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},
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handleClose(key, keyPath) {
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console.log(key, keyPath);
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}
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}
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}
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</script>
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```
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:::
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### Menu Attribute
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| 参数 | 说明 | 类型 | 可选值 | 默认值 |
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|---------- |-------- |---------- |------------- |-------- |
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| mode | 模式 | string | horizontal / vertical | vertical |
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| collapse | 是否水平折叠收起菜单（仅在 mode 为 vertical 时可用）| boolean | — | false |
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| background-color | 菜单的背景色（仅支持 hex 格式） | string | — | #ffffff |
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| text-color | 菜单的文字颜色（仅支持 hex 格式） | string | — | #303133 |
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| active-text-color | 当前激活菜单的文字颜色（仅支持 hex 格式） | string | — | #409EFF |
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| default-active | 当前激活菜单的 index | string | — | — |
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| default-openeds | 当前打开的 sub-menu 的 index 的数组 | Array | — | — |
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| unique-opened | 是否只保持一个子菜单的展开 | boolean | — | false |
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| menu-trigger | 子菜单打开的触发方式(只在 mode 为 horizontal 时有效) | string | hover / click | hover |
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| router | 是否使用 vue-router 的模式，启用该模式会在激活导航时以 index 作为 path 进行路由跳转 | boolean | — | false |
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| collapse-transition | 是否开启折叠动画 | boolean | — | true |
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### Menu Methods
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| 方法名称 | 说明 | 参数 |
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|---------- |-------- |---------- |
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| open | 展开指定的 sub-menu | index: 需要打开的 sub-menu 的 index |
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| close | 收起指定的 sub-menu | index: 需要收起的 sub-menu 的 index |
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### Menu Events
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| 事件名称 | 说明 | 回调参数 |
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|---------- |-------- |---------- |
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| select | 菜单激活回调 | index: 选中菜单项的 index, indexPath: 选中菜单项的 index path |
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| open | sub-menu 展开的回调 | index: 打开的 sub-menu 的 index， indexPath: 打开的 sub-menu 的 index path |
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| close | sub-menu 收起的回调 | index: 收起的 sub-menu 的 index， indexPath: 收起的 sub-menu 的 index path |
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### SubMenu Attribute
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| 参数 | 说明 | 类型 | 可选值 | 默认值 |
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|---------- |-------- |---------- |------------- |-------- |
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| index | 唯一标志 | string/null | — | null |
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| popper-class | 弹出菜单的自定义类名 | string | — | — |
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| show-timeout | 展开 sub-menu 的延时 | number | — | 300 |
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| hide-timeout | 收起 sub-menu 的延时 | number | — | 300 |
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| disabled | 是否禁用 | boolean | — | false |
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| popper-append-to-body | 是否将弹出菜单插入至 body 元素。在菜单的定位出现问题时，可尝试修改该属性 | boolean | — | 一级子菜单：true / 非一级子菜单：false |
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### Menu-Item Attribute
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| 参数 | 说明 | 类型 | 可选值 | 默认值 |
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|---------- |-------- |---------- |------------- |-------- |
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| index | 唯一标志 | string | — | — |
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| route | Vue Router 路径对象 | Object | — | — |
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| disabled | 是否禁用 | boolean | — | false |
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### Menu-Group Attribute
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| 参数 | 说明 | 类型 | 可选值 | 默认值 |
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|---------- |-------- |---------- |------------- |-------- |
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| title | 分组标题 | string | — | — |
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