导出excel的功能效果实现

<el-button @click="exportExcel" >

<i style="display: inline-block;">

<img src="@/assets/img/export.png" alt>

</i> 导出

</el-button>

==============》

methods: {

exportExcel () {

console.log(111)

if (this.tableData.length) {

this.exportLoading = true

const params = {

title: ['序号', '所属一级分区', '所属二级分区','时间（月）','供水量','环比上月'],

key: ['category1', 'category2', 'category3','category4','category5'],

data: this.tableData,

autoWidth: true,

filename: '供水量统计'

}

excel.export_array_to_excel(params)

this.exportLoading = false

} else {

this.$Message.info('表格数据不能为空！')

}

}

},