vue.js：点击空白区域关闭弹窗

<div class="selectedBorder" ref="main">
  <div class="bankItem" v-if="bankSwitch == true">
  你好我是弹窗里面的内容部分
  </div>
</div>

mounted() {
  // 监听全局点击事件
  document.addEventListener("click", this.bodyCloseMenus);
 },
 beforeDestroy() {
  // 在页面注销前，将点击事件给移除
  document.removeEventListener("click", this.bodyCloseMenus);
 },
 methods:{
   bodyCloseMenus(e) {
    let self = this;
    if (this.$refs.main && !this.$refs.main.contains(e.target)) {
     if (self.bankSwitch == true){
      self.bankSwitch = false;
     }
   }
  }

<div class="selectedBorder" @click.stop>
  <div class="bankItem" v-if="bankSwitch == true">
  你好我是弹窗里面的内容部分
  </div>
</div>

mounted() {
  document.addEventListener("click", this.bodyCloseMenus);
 },
 beforeDestroy() {
  document.removeEventListener("click", this.bodyCloseMenus);
 },
 methods:{
  bodyCloseMenus(e) {
    let self = this;
     if (self.bankSwitch == true){
      self.bankSwitch = false;
     }
  }
 }