vue点击空白处操作div隐藏与显示

<template>
 <p>
 <p class="show" v-show="show" v-clickoutside="handleClose">
 显示
 </p>
 </p>
</template>
<script>
const clickoutside = {
 // 初始化指令
 bind(el, binding, vnode) {
 function documentHandler(e) {
 // 这里判断点击的元素是否是本身，是本身，则返回
 if (el.contains(e.target)) {
 return false;
 }
 // 判断指令中是否绑定了函数
 if (binding.expression) {
 // 如果绑定了函数 则调用那个函数，此处binding.value就是handleClose方法
 binding.value(e);
 }
 }
 // 给当前元素绑定个私有变量，方便在unbind中可以解除事件监听
 el.vueClickOutside = documentHandler;
 document.addEventListener('click', documentHandler);
 },
 update() {},
 unbind(el, binding) {
 // 解除事件监听
 document.removeEventListener('click', el.vueClickOutside);
 delete el.vueClickOutside;
 },
};
export default {
 name: 'HelloWorld',
 data() {
 return {
 show: true,
 };
 },
 directives: {clickoutside},
 methods: {
 handleClose(e) {
 this.show = false;
 },
 },
};
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
.show {
 width: 100px;
 height: 100px;
 background-color: red;
}
</style>