element-ul data dictionary formatting

<el-table-column prop="countryName" label="所属村镇" width="250" :formatter="formatterContryName"></el-table-column>

methods: {
    
    
		formatterContryName () {
    
    
			const countryMap = new Map([
				['1', '茂芝场村'],
				['2', '前富村'],
				['3','后富村']
			])
			const key = arguments[0].countryName
			return countryMap.get(key)
		},