<el-form-item label="废物类型："><el-select clearable v-model="queryForm.hswCateType" placeholder="请选择" @change="industryCategoryChange" @focus="industryCategoryFocus"><el-option v-for="item in wasteTypeOptions" :key="item.hswCate" :label="item.hswCateName" :value="item.hswCate"></el-option></el-select>
</el-form-item>
<el-form-item label="废物代码："><el-select clearable v-model="queryForm.hswCateCode" placeholder="请选择" popper-class="isIndustryBigCategory" class="industryBigCategoryClass" @change="industryBigCategoryChange" @focus="industryBigCategoryFocus"><el-option v-for="item in wasteCodeOptions" :key="item.hswCode" :label="item.hswCode" :value="item.hswCode"></el-option></el-select>
<div v-if="ifIndustryBigCategory" style="height: 0;margin-top: -8px;color: #f56c6c;">请选择废物类型</div>
</el-form-item>

queryForm:{},
ifIndustryBigCategory: false, //废物代码下方红字是否显示
// 废物类型wasteTypeOptions: [{hswCateName: "选项1",hswCate: "1",},{hswCateName: "选项2",hswCate: "2",},
],
// 废物代码
wasteCodeOptions: [],

  created() {// 点击页面的任何一个地方，都隐藏提示document.addEventListener("click", this.hiddenStyle);},beforeDestroy: function () {document.removeEventListener("click", this.hiddenStyle);},

    // 隐藏废物代码的焦点样式hiddenStyle() {this.ifIndustryBigCategory = false;$(".industryBigCategoryClass input").css({ "border-color": "" });},// 废物类别 - 值改变时industryCategoryChange(val) {if (this.queryForm.hswCateType) {// 选择了废物类别以后，请求接口出现废物代码的下拉数据// 给废物代码请求数据并赋值this.wasteCodeOptions = [{hswCode:'1',}];} else {this.queryForm.hswCateCode = "";}},// 废物类别 - input获得焦点时industryCategoryFocus() {this.hiddenStyle();},// 废物代码 - 值改变时industryBigCategoryChange(val) {},// 废物代码 - input获得焦点时industryBigCategoryFocus() {// 判断是否选择了废物类别，如果没有选择，则给出提示，并把选择框的颜色改变if (this.queryForm.hswCateType) {this.ifIndustryBigCategory = false;this.commonStyleReveal(".isIndustryBigCategory",".industryBigCategoryClass");} else {this.ifIndustryBigCategory = true;this.commonStyleHidden(".isIndustryBigCategory",".industryBigCategoryClass");}},// 公共的控制样式的函数 - 上一个级联的选择了以后，下一个下拉显示的控制commonStyleReveal(argument1, argument2) {// 显示下拉$(argument1).css({ opacity: 1 });$(argument1 + " .el-scrollbar").css({ display: "block" });$(argument1 + " .el-select-dropdown__empty").css({ display: "block" });// input框的颜色以及隐藏下方的文字$(argument2 + " input").css({ "border-color": "" });// 恢复右侧箭头的方向$(argument2 + " .el-select__caret.el-select__caret").css({transform: "",});},// 公共的控制样式的函数 - 上一个级联的未选择，下一个下拉隐藏的控制commonStyleHidden(argument1, argument2) {// 隐藏下拉$(argument1).css({ opacity: 0 });$(argument1 + " .el-scrollbar").css({ display: "none" });$(argument1 + " .el-select-dropdown__empty").css({ display: "none" });// input框的颜色$(argument2 + " input").css({ "border-color": "#f56c6c" });// 右侧箭头不改变方向$(argument2 + " .el-select__caret.el-select__caret").css({transform: "rotateZ(180deg)",});},