columns1: [
   {
   title: '序号',
   key: 'serNum'
   },
   {
   title: '选择',
   key: 'choose',
   align: 'center',
   render: (h, params) => {
    if (params.row.status !== '1' && params.row.status !== '2') {
    return h('div', [
     h('checkbox', {
     props: {
      type: 'selection'
     },
     on: {
      'input': (val) => {
      console.log(val)
      }
     }
     })
    ])
    } else {
    return h('span', {
     style: {
     color: '#587dde',
     cursor: 'pointer'
     },
     on: {
     click: () => {
      // this.$router.push({name: '', query: { id: params.row.id }})
     }
     }
    }, '查看订单')
    }
   }
   },
   ...
  ],

alias: {
  'src': path.resolve(__dirname, '../src'),
 }

require('script-loader!file-saver')
 // 转二进制用
 require('script-loader!src/vendor/Blob')
 // xlsx核心
 require('script-loader!xlsx/dist/xlsx.core.min')

handleDownload() {
  this.downloadLoading = true
  require.ensure([], () => {
   const {export_json_to_excel} = require('src/vendor/Export2Excel')
   const tHeader = Util.cutValue(this.columns1, 'title')
   const filterVal = Util.cutValue(this.columns1, 'key')
   const list = this.tableData1
   const data = this.formatJson(filterVal, list)
   export_json_to_excel(tHeader, data, '列表excel')
   this.downloadLoading = false
  })
  },
  formatJson(filterVal, jsonData) {
  return jsonData.map(v => filterVal.map(j => v[j]))
  }

### Util module
// 截取value值
utils.cutValue = function (target, name) {
 let arr = []
 for (let i = 0; i < target.length; i++) {
 arr.push(target[i][name])
 }
 return arr
}

1.<input id="upload" type="file" @change="importfxx(this)" accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel" /> 

importfxx(obj) { 
let _this = this; 
console.log("xxxxxxxxxxxxxxxxxxxxxxxxxxx1"); 
let inputDOM = this.$refs.inputer; 
// 通过DOM取文件数据 
this.file = event.currentTarget.files[0]; 
var rABS = false; //是否将文件读取为二进制字符串 
var f = this.file; 
var reader = new FileReader(); 
//if (!FileReader.prototype.readAsBinaryString) { 
FileReader.prototype.readAsBinaryString = function(f) { 
var binary = ""; 
var rABS = false; //是否将文件读取为二进制字符串 
var pt = this; 
var wb; //读取完成的数据 
var outdata; 
var reader = new FileReader(); 
reader.onload = function(e) { 
var bytes = new Uint8Array(reader.result); 
var length = bytes.byteLength; 
for(var i = 0; i < length; i++) { 
binary += String.fromCharCode(bytes[i]); 
} 
var XLSX = require('xlsx'); 
if(rABS) { 
wb = XLSX.read(btoa(fixdata(binary)), { //手动转化 
type: 'base64' 
}); 
} else { 
wb = XLSX.read(binary, { 
type: 'binary' 
}); 
} 
outdata = XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]]);//outdata就是你想要的东西 
} 
reader.readAsArrayBuffer(f); 
} 
if(rABS) { 
reader.readAsArrayBuffer(f); 
} else { 
reader.readAsBinaryString(f); 
} 
} 

inportexcel: function() {　//兼容ie10哦！ 
require.ensure([], () => {　　　　　　　　 
const { export_json_to_excel } = require('../../vendor/Export2Excel');　　//引入文件　　　　　　 
const tHeader = ['用户名', '姓名', '部门', '职位', '邮箱', '充值']; //将对应的属性名转换成中文 
// const tHeader = []; 
　　　　　　　　 
const filterVal = ['userName', 'realName', 'department', 'position', 'email', 'money'];//table表格中对应的属性名　　　　　 　　　 
const list = this.sels;　　　　　　　　 
const data = this.formatJson(filterVal, list);　　　　　　　　 
export_json_to_excel(tHeader, data, '列表excel');　　　　　　 
}) 
}