根据已选择的属性 , 禁用相同属性的选项 ,如果重复则不能再选择

<template>
  <div class="container">
    <h3>需求：一共4台车 每人只能选择不一样的车 选过的不能再选</h3>
    <div
      v-for="(item, index) in person.model.selectList"
      :key="index"
      class="selectItem"
    >
      <div class="name">
        <span>姓名：</span>
        <el-select size="small" v-model="item.name" placeholder="请选择">
          <el-option
            v-for="e in person.optionsName"
            :value="e.value"
            :key="e.value"
            :label="e.label"
          >
          </el-option>
        </el-select>
      </div>
      <div class="car">
        <span>车：</span>
        <el-select
          size="small"
          v-model="item.car"
          placeholder="请选择"
          @change="chageValue"
        >
          <el-option
            v-for="e in person.optionsCar"
            :value="e.value"
            :key="e.value"
            :label="e.label"
            :disabled="e.disabled"
          >
          </el-option>
        </el-select>
      </div>
    </div>
  </div>
</template>

<script setup>
import { reactive } from "vue";
const person = reactive({
  model: {
    selectList: [
      { name: "", car: "" },
      { name: "", car: "" },
      { name: "", car: "" },
      { name: "", car: "" },
    ],
  },
  optionsName: [
    {
      value: "1",
      label: "张三",
    },
    {
      value: "2",
      label: "李四",
    },
    {
      value: "4",
      label: "王五",
    },
    {
      value: "5",
      label: "李六",
    },
  ],
  optionsCar: [
    {
      value: "6",
      label: "玛莎",
      disabled: false,
    },
    {
      value: "7",
      label: "保时捷",
      disabled: false,
    },
    {
      value: "8",
      label: "法拉利",
      disabled: false,
    },
    {
      value: "9",
      label: "劳斯莱斯",
      disabled: false,
    },
  ],
});
function chageValue() {
  console.log(person.model.selectList);
  person.optionsCar.forEach((v) => {
    v.disabled = false;
    person.model.selectList.forEach((i) => {
      if (i.car == v.value) {
        v.disabled = true;
      }
    });
  });
}
</script>