.v-on:click="f0"
时间: 2023-07-06 13:41:07 浏览: 51
`.v-on:click` 是 Vue 中绑定事件的一种方式,等价于简写的 `@click`。`click` 表示绑定的事件类型,`f0` 是要执行的函数名或表达式。例如,可以这样写:
```html
<button v-on:click="f0">点击按钮执行函数</button>
```
或者简写为:
```html
<button @click="f0">点击按钮执行函数</button>
```
这样就会在按钮被点击时执行 `f0` 函数。在 Vue 中,可以使用 `v-on` 或 `@` 符号来绑定各种事件,例如 `v-on:click` 绑定点击事件,`v-on:input` 绑定输入事件等等。通过绑定事件,可以使得页面和用户的交互更加丰富和灵活。
相关问题
<template> <div id="app" class="demo"> <button v-for="tab in tabs" v-bind:key="tab" v-bind:class="['tab-button', { active: currentTab === tab }]" v-on:click="currentTab = tab" > {{ tab }} </button> <keep-alive> <component :is="currentTabComponent"></component> </keep-alive> </div> </template> <script> import { computed, reactive, toRefs } from "vue"; import TabPosts from "./components/tabPosts.vue"; import TabHome from "./components/tabHome.vue"; import TabLikes from "./components/tabLikes.vue"; export default { components: { TabPosts, TabHome, TabLikes, }, setup() { const data = reactive({ currentTab: "Home", tabs: ["Home", "Posts", "Likes"], }); const currentTabComponent = computed(() => { return "tab-" + data.currentTab.toLowerCase(); }); return { ...toRefs(data), currentTabComponent, }; }, }; </script> <style> .demo { font-family: sans-serif; border: 1px solid #eee; border-radius: 4px; padding: 20px 30px; margin-top: 1em; margin-bottom: 10px; user-select: none; overflow-x: auto; } .tab-button:hover { padding: 12px 20px; border-top-left-radius: 6px; border-top-right-radius: 6px; border: 1px solid #ccc; cursor: pointer; background: #f0f0f0; margin-bottom: -2px; overflow-x: -2px; } .tab-button:active { background: #e0e0e0; } .demo-tab { border: 1px solid #ccc; padding: 20px; } </style>把这个美化一下
<>
<div id="app" class="demo">
<button
v-for="tab in tabs"
v-bind:key="tab"
v-bind:class="['tab-button', { active: currentTab === tab }]"
v-on:click="currentTab = tab"
>
{{ tab }}
</button>
<keep-alive>
<component :is="currentTabComponent"></component>
</keep-alive>
</div>
</template>
<script>
import { computed, reactive, toRefs } from "vue";
import TabPosts from "./components/tabPosts.vue";
import TabHome from "./components/tabHome.vue";
import TabLikes from "./components/tabLikes.vue";
export default {
components: {
TabPosts,
TabHome,
TabLikes,
},
setup() {
const data = reactive({
currentTab: "Home",
tabs: ["Home", "Posts", "Likes"],
});
const currentTabComponent = computed(() => {
return "tab-" + data.currentTab.toLowerCase();
});
return {
...toRefs(data),
currentTabComponent,
};
},
};
</script>
<style>
.demo {
font-family: sans-serif;
border: 1px solid #eee;
border-radius: 4px;
padding: 20px 30px;
margin-top: 1em;
margin-bottom: 10px;
user-select: none;
overflow-x: auto;
}
.tab-button:hover {
padding: 12px 20px;
border-top-left-radius: 6px;
border-top-right-radius: 6px;
border: 1px solid #ccc;
cursor: pointer;
background: #f0f0f0;
margin-bottom: -2px;
overflow-x: -2px;
}
.tab-button:active {
background: #e0e0e0;
}
.demo-tab {
border: 1px solid #ccc;
padding: 20px;
}
</style>
<template> <el-drawer :destroy-on-close="true" title="权限设置" :visible.sync="authDrawer" size="30%" <div class="storeInfo"> <el-table border :data="gridData" ref="multipleTable" @row-click="singleElection" :header-cell-style="{ background: '#f0f0f0', }" > <!-- @selection-change="handleSelectionChange" --> <!-- <el-table-column type="selection" width="70" align="center" ></el-table-column> --> <el-table-column width="65"> <template slot-scope="scope"> <el-radio class="radio" v-model="templateSelection" :label="scope.$index"> </el-radio> </template> </el-table-column> <el-table-column prop="name" label="功能名称" min-width="200" align="center" ></el-table-column> </el-table> <div class="demo-drawer__footer"> <el-button @click="authDrawer = false">关闭</el-button> <el-button type="primary" @click="submitAuth" :loading="loading">{{ loading ? "提交中 ..." : "保存" }}</el-button> </div> </div> </el-drawer> </template> <script> import { inviteStoresSetPerm, inviteStoresGetPermInfo, } from "@/api/business/joinStores"; export default { name: "storeInfo", props: { row: { type: Object, default: () => {}, }, }, data() { return { gridData: [ { name: "暂停(用户端店铺不显示,店铺功能正常)", id: "1", }, { name: "关闭(专卖店权限临时关闭,普通店铺正常)", id: "2", }, { name: "取消(专卖店权限全部取消,降为普通店铺)", id: "3", }, { name: "正常(默认)", id: "4", }, ], templateSelection:'', multipleSelection: [], loading: false, authDrawer: false, }; },我想让我的el-radio给一个选中默认值应该怎么做
要给el-radio设置一个选中默认值,可以使用v-model指令来绑定一个数据属性,并设置其初始值。在这个示例中,可以将`templateSelection`属性设为el-radio的v-model,并将默认值设为所需的选项索引,如下所示:
```html
<el-radio class="radio" v-model="templateSelection" :label="scope.$index"> </el-radio>
```
```javascript
data() {
return {
// ...
templateSelection: 0, // 设置初始默认值为索引0
// ...
}
}
```
这样,在页面加载时,el-radio就会选中默认值为索引0的选项。如果想要选中其他选项,只需将`templateSelection`的值设置为对应选项的索引即可。
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