vue输入框中输完后光标自动跳到下一个输入框中的实现方法

<template>
  <div class="parentBox">
    <div v-for="(item, index) in inputList" :key="index">
      <input type="text" v-model="item.pinless" class="inputValue" @keyup="keyboard($event, index)" @keydown="expurgate(index)" />
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      // 输入框循环的数组
      inputList: [
        { pinless: "" },
        { pinless: "" },
        { pinless: "" },
        { pinless: "" },
        { pinless: "" },
        { pinless: "" },
      ],
    };
  },
  methods: {
    // 键盘松开事件
    keyboard(e, index) {
      let domNode = document.getElementsByClassName("inputValue"),
        currInput = domNode[index],
        nextInput = domNode[index + 1],
        lastInput = domNode[index - 1];
      if (e.keyCode != 8) {
        if (index < this.inputList.length - 1) {
          nextInput.focus();
        } else {
          currInput.blur();
        }
      } else {
        if (index != 0) {
          lastInput.focus();
        }
      }
    },
    // 键盘按下触发
    expurgate(index) {
      this.inputList[index].pinless = "";
    },
  },
};
</script>
<style scoped>
.parentBox {
  padding: 20px;
  display: flex;
}
.parentBox div:nth-child(n + 2) {
  margin-left: 4px;
}
input {
  color: #606266;
  font-size: 18px;
  text-align: center;
  width: 54px;
  height: 62px;
  border: 2px solid gainsboro;
  border-radius: 4px;
}
</style>