利用 customRender这个数据来处理

<template>
	<a-table 
      :columns="columns" 
      :dataSource="list" >

    </a-table>
</template>
<script>
export default {
    name: "FinancialFlowList",
    data () {
      return {
      	columns:[
			{title: '性别', dataIndex: 'sex', key: 'sex',
              customRender:function (text) {
              if(text=='x'){
                return "男";
              }else if(text=='y'){
                return "女";
              }else{
                return text;
              }
            }},
		],
		list:[{sex:'x'}]
      }
    }
 }
    
</script>