Vue

在输入框绑定   :required="form.delivery"

 <el-form ref="form" :rules="rules" :model="form" label-width="80px">
        <el-form-item label="即时配送" class="swi" prop="delivery">
            <el-switch v-model="form.delivery"></el-switch>
        </el-form-item>
        <el-form-item label="即时配送" class="swi" prop="info" :required="form.delivery">
            <el-input v-model="form.info"></el-input>
        </el-form-item>
        <el-button type="primary" @click="onSubmit">立即创建</el-button>
    </el-form>

<script>
    export default {
        name: "Index",
        data: () => ({
            form:{
                delivery:false,
                info:"",
            },
            rules: {
                info: [{message: '必须填写用户名', trigger: 'blur'}],
            },
        }),
    }
</script>