一、场景

1.需求： 用户可自由选择需要修改的对象并同时修改多个属性，需要校验修改对象不能重复选择，但是可供修改属性是固定的

2.目标效果：

二、实现

1.主要代码：

<template>
 <el-select
    v-model="selValue"
    :size="$attrs.size"
    placeholder="请选择"
    @change="canidateChange(scope)"
  >
    <el-option
      v-for="(selc, index) in SelectColumns"
      :key="index + selc.item.key"
      :label="selc.item.title"
      :value="selc.item.key"
      :disabled="selc.item.disabled"
    ></el-option>
  </el-select>
 </template>
<script>
export default{
	name:"",
	data(){
	  const SelectColumns = [
		    {
		      item: {
		        key: "priceType",
		        title: "属性1",
		      },
		      attr: {
		        is: "el-select",
		        dictName: "sys_price_type",
		      }
		    },
		    {
		      item: {
		        key: "assignSupplierName",
		        title: "属性2",
		        // key: "supplierName",
		      },
		      attr: {
		        readonly: true,
		        is: "el-input",
		      },
		    },
		    {
		      item: {
		        key: "input1",
		        title: "属性3",
		      },
		      attr: {
		        is: "el-input",
		      }
		    },
		    {
		      item: {
		        key: "input2",
		        title: "属性4",
		      },
		      attr: {
		        is: "el-input",
		      }
		    },
		
		  ].map(({ item, attr }) => {
		    return {
		      item: { ...item },
		      attr: {
		        ...attr,
		        disabled: false,
		      }
		    }
		  });
		return {
			SelectColumns:SelectColumns,
		}
	},
	methods:{
		canidateChange(prop) {
	      let { $index, row } = prop;
      	  this.SelectColumns = this.SelectColumns.map(({ item, attr }) => {
      	  	// 重置
        	item.disabled = false;

        	let index = this.innerValue.findIndex(
          		(inVal) => inVal.candidate === item.key
        	);
	        // 存在
	        if (index !== -1) {
	          item.disabled = true;
	        }

	        return {
	          item,
	          attr,
	        };
	      });
	    }
	}
}
</script>