如，有一变量isshow，通过this[`${"isshow"}`]可以获取到变量。
例，原：this.isshow = false ，现：this[`${"isshow"}`] = false 。
switch1(param) {
this[`${param}`] = !this[`${param}`];
}
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!-- 引入Vue -->
<script src="https://unpkg.com/vue/dist/vue.js"></script>
</head>
<body>
<div id="app" style="height: 600px; width: 500px; margin: 0 auto; display: flex; flex-direction: column; align-items:center;">
<div style="height: 100px; width: 100px; margin-top: 60px;">
<div v-show="isshow" style="height: 100px; width: 100px; background-color: aqua;"></div>
</div>
<button v-on:click="switch1('isshow')" style="height: 50px; width: 80px; margin-top: 30px;"></button>
</div>
<script>
new Vue({
el: '#app',
data: {
isshow: true
},
methods: {
switch1(param) {
this[`${param}`] = !this[`${param}`];
console.log("" + param + " : " + this.isshow)
}
}
});
</script>
</body>
</html>