组件逻辑调整&格式化

src/components/app-van-select/app-van-select.less

+.van-dropdown-menu__bar {
+  box-shadow: none;
+}
+.van-ellipsis {
+  padding-right: 15px;
+}
+.van-dropdown-menu__title::after {
+  right: 6px;
+}
+.dropdown-box {
+  display: flex;
+  flex-wrap: wrap;
+  padding: 15px 0;
+  .dropdown-item {
+    width: 50%;
+    display: flex;
+    padding: 8px 12px;
+    .dropdown-item-icon {
+      padding: 0 5px;
+      position: absolute;
+    }
+    .dropdown-item-text {
+      margin-left: 35px;
+    }
+  }
+}
+.dropdown-btn {
+  width: 50%;
+}
+.van-dropdown-item__content {
+  border-radius: 0 0 15px 15px;
+}

src/components/app-van-select/app-van-select.vue

 <template>
   <van-dropdown-menu  :class="showTitle === title?'':'dropdown-menu-ative'" class="ibiz-dropdown-menu">
-    <van-dropdown-item :title="showTitle" ref="item" >
+    <van-dropdown-item get-container="#app" :lazy-render="false" :title="showTitle" ref="item" >
         <div class="dropdown-box">
         <div v-for="(item,index) in items" :key="index" class="dropdown-item" @click="itemClick(item)">
             <div v-show="selectItem == item" class="dropdown-item-icon"><van-icon name="success" /></div>
@@ -14,14 +14,7 @@
 </template>
 
 <script lang="ts">
-import {
-  Vue,
-  Component,
-  Prop,
-  Provide,
-  Emit,
-  Watch
-} from "vue-property-decorator";
+import { Vue, Component, Prop, Provide, Emit, Watch } from "vue-property-decorator";
 
 @Component({
     components: {},
@@ -44,7 +37,7 @@ export default class AppVanSelect extends Vue {
       * 数据集
       *
       * @type {any}
-     * @memberof AppVanMenu
+      * @memberof AppVanSelect
       */
     @Prop() public items?: any;
 
@@ -52,7 +45,7 @@ export default class AppVanSelect extends Vue {
      * 搜索名
      *
      * @type {any}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
     @Prop() public name!: string;
 
@@ -60,7 +53,7 @@ export default class AppVanSelect extends Vue {
      * 名称
      *
      * @type {any}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
     @Prop() public title?: any;
 
@@ -68,114 +61,82 @@ export default class AppVanSelect extends Vue {
      * 展示信息
      *
      * @type {any}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
-    public showTitle :any = "";
+    public showTitle: any = "";
+
+    /**
+     * 当前选中数据
+     *
+     * @type {any}
+     * @memberof AppVanSelect
+     */
+    public selectItem: any = {};
 
     /**
      * 重置按钮
      *
      * @type {string}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
-    public onReset(){
+    public onReset() {
         this.selectItem = {};
         this.showTitle = this.title;
         this.closeDropdown();
-        this.$emit('onConfirm',{[this.name]:this.selectItem.value})
+        this.$emit('onConfirm', { [this.name]: this.selectItem.value })
     }
 
-    /**
-     * 当前选中数据
-     *
-     * @type {any}
-     * @memberof AppVanMenu
-     */
-    public selectItem: any ={};
-
     /**
      * 数据点击事件
      *
      * @type {any}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
-    public itemClick(item:any){
+    public itemClick(item: any) {
         this.selectItem = item;
     }
 
-    /**
-     * 生命周期
-     *
-     * @memberof AppVanMenu
-     */
-    created(){
-        this.showTitle =  this.title ;
-    }
+
 
     /**
      * 收起数据
      *
      * @type {any}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
     public closeDropdown() {
-        let dropdown: any =this.$refs.item;
-        if(dropdown.toggle &&  dropdown.toggle instanceof Function){
+        let dropdown: any = this.$refs.item;
+        if (dropdown.toggle && dropdown.toggle instanceof Function) {
             dropdown.toggle();
         }
 
     }
+
     /**
      * 提交事件
      *
      * @type {any}
-     * @memberof AppVanMenu
+     * @memberof AppVanSelect
      */
     public onConfirm() {
-        if(this.selectItem.label){
+        if (this.selectItem.label) {
             this.showTitle = this.selectItem.label;
         }
         this.closeDropdown();
-        this.$emit('onConfirm',{[this.name]:this.selectItem.value})
+        this.$emit('onConfirm', { [this.name]: this.selectItem.value })
+    }
+
+    /**
+     * 生命周期
+     *
+     * @memberof AppVanSelect
+     */
+    created() {
+        this.showTitle = this.title;
     }
 
 }
 </script>
 <style lang="less">
-.ibiz-dropdown-menu {
-  min-width: 100px;
-  max-width: 100px;
-  height: 30px;
-  .van-ellipsis {
-    padding-right: 15px;
-  }
-  .van-dropdown-menu__title::after {
-    right: 6px;
-  }
-  .dropdown-box {
-    display: flex;
-    flex-wrap: wrap;
-    padding: 15px 0;
-    .dropdown-item {
-      width: 50%;
-      display: flex;
-      padding: 8px 12px;
-      .dropdown-item-icon {
-        padding: 0 5px;
-        position: absolute;
-      }
-      .dropdown-item-text {
-        margin-left: 35px;
-      }
-    }
-  }
-  .dropdown-btn {
-    width: 50%;
-  }
-  .van-dropdown-item__content {
-    border-radius: 0 0 15px 15px;
-  }
-  .dropdown-menu-ative {
-  }
-}
+@import "./app-van-select.less";
 </style>
\ No newline at end of file