vue2版本代码在vue3中应该是怎样写呢?
<span slot="footer" class="dialog- footer"> <el-button type="primary" @click="dialogVisible = false">确定</el-button>
</span>
这段代码在vue2下不会报错,但是在vue3中 slot的写法变成了v-slot,由于我刚学不久还不会改写求帮忙改写一下。整体的vue文件就是elementui拉下来的一个登录
<template> <div>
<el-form ref="loginForm" :model="form" :rules="rules" label-width="80px" class="login-box">
<h3 class="login-title">欢迎 登录</h3>
<el-form-item label=" 账号" prop="username">
<el-input type="text" placeholder="请输入账号" v-model="form.username"/>
</el-form-item>
<el-form-item label=" 密码" prop="password">
<el-input type="password" placeholder=" 请输入密码" v-model="form.password"/>
</el-form-item>
<el-form-item>
<el-button type="primary" v-on:click="onSubmit( 'loginForm' )">登录</el-button>
</el-form-item>
</el-form>
<el-dialog
title="温馨提示"
:visible="dialogVisible"
width="30%"
:before-close="handLeClose">
<span>请输入账号和密码</span>
<span slot="footer" class="dialog- footer">
<el-button type="primary" @click="dialogVisible = false">确定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
export default {
// eslint-disable-next-line vue/multi-word-component-names
name: "Login",
data() {
return {
form: {
username: '',
password: ''
},
//表单验证,需要在el-form-item 元素中增加prop 属性
rules: {
username: [
{required: true, message: " 账号不可为空", trigger: 'blur'}
],
password: [
{required: true, message: " 密码不可为空 ", trigger: 'blur'}
]
},
//对话框显示和隐藏
dialogVisible: false
}
},
methods: {
onSubmit(formName) {
//为表单绑定验证功能
this.$refs[formName].validate((valid) => {
if (valid) {
//使用vue-router路由到指定页面,该方式称之为编程式导航
this.$router.push("/main");
} else {
this.dialogVisible = true;
return false;
}
});
}
}
}
</script>
<style lang="scss" scoped>
.login-box {
border: 1px solid #DCDFE6;
width: 350px;
margin: 180px auto;
padding: 35px 35px 15px 35px;
border-radius: 5px;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
box-shadow: 0 0 25px #909399;
}
.login-title {
text-align: center;
margin: 0 auto 40px auto;
color: #303133;
}
</style>
回答:
https://element-plus.gitee.io/zh-CN/component/dialog.html#%E5...
官网不就是 vue3 的吗?
回答:
slot="footer"
改为v-slot:footer
或#footer
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