vue2 点击加一 (5)

展示

代码

<template>
  <div>
    <h1>数字：{{ this.counter}}</h1>
    <button @click="plusOne">点击加1</button>
  </div>
</template>
<script>
export default {
  name: "App",
  data() {
    return {
      counter: 0,
    };
  },
  methods: {
    plusOne() {
      this.counter++;
    },
  },
};
</script>