当选择题库时,获取到章和节的列表,章节才能够被选择
现在要实现的效果是当题库发生改变时,章节列表也发生改变,需要清空当前选择项
如图,题库改变了,章节列表的数据也发生改变了
<el-form ref="form" :model="form" label-width="50px" :rules="rules"><el-form-item label="章节:"><el-select v-model="form.section" style="margin-right:20px" @change="sectionChange"><el-optionv-for="item in section":key="item.pointId":label="item.pointName":value="item.pointId"></el-option></el-select><el-select v-model="form.festival" @change="festivalChange"><el-optionv-for="item in festival":key="item.pointId":label="item.pointName":value="item.pointId"></el-option></el-select></el-form-item></el-form>
这是基本数据结构
export default {data() {return {form: {section: null,festival: null},section: [],festival: [],},watch: {section: function(newValue) {this.section = newValue;this.form.section = null;this.form.festival = null;}},},
我监听this.section中是否有新数据,如果有就让this.section=新数据,然后清空表单中的旧数据.
