How does vue make the picture disappear after clicking on it?

<template>
   <div class="txt">
      <img :src="src" @click=show>
   </div>
</template>
data () {
    return {
      src: "./static/css/001.jpg"
    }
},
methods: {
    show () {
           
    }
}
Dec.22,2021

<template>
  <div class="txt">
    <img :src="src" @click="show" v-show="visible">
  </div>
</template>
data() {
  return {
    src: './static/css/001.jpg',
    visible: true,
  };
},
methods: {
  show() {
    this.visible = false;
  },
}
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