Vuejs如何取回原始数组值

<template>
  <div>
    <ul>
      <li v-for="item in myArray" :key="item">{{ item }}</li>
    </ul>
  </div>
</template>

<template>
  <div>
    <ul>
      <li v-for="item in originalArray" :key="item">{{ item }}</li>
    </ul>
  </div>
</template>

<script>
export default {
  data() {
    return {
      myArray: [1, 2, 3, 4, 5]
    };
  },
  computed: {
    originalArray() {
      return this.myArray;
    }
  }
};
</script>

<template>
  <div>
    <ul>
      <li v-for="item in getOriginalArray()" :key="item">{{ item }}</li>
    </ul>
  </div>
</template>

<script>
export default {
  data() {
    return {
      myArray: [1, 2, 3, 4, 5]
    };
  },
  methods: {
    getOriginalArray() {
      return this.myArray;
    }
  }
};
</script>