vue 混入mixin

//创建plugin.js
export default {
  install: function (Vue) {
    Vue.mixin({
      methods: {
        $error(data){this.$Message.error({content: data,duration: 3,closable: true});},
        $info(data){this.$Message.info({content: data,duration: 3,closable: true});},
        $warning(data){this.$Message.warning({content: data,duration: 3,closable: true});},
        $success(data){this.$Message.success({content: data,duration: 3,closable: true});},
        $returnExcel(data, columns, titles) {
          let tableData = data;
          let title = columns;
          let tHeader = [];
          let tHeaderId = [];
          let tableinfo = [];
          for (let i = 0; i < title.length; i++) {
            if (title[i].key != null && title[i].key != "action") {
              tHeader.push(title[i].title);
              tHeaderId.push(title[i].key);
            }
          }
          for (let n = 0; n < tableData.length; n++) {
            var obj = {};
            for (let j = 0; j < tHeaderId.length; j++) {
              let id = tHeaderId[j];
              let value = tableData[n][tHeaderId[j]];
              obj[id] = value;
            }
            tableinfo.push(obj);
          }
          require.ensure([], () => {
            const {
              export_json_to_excel,
            } = require("../utils/returnExcel/Export2Excel");
            const excelTile = titles;
            const tHeaderTitle = tHeader;
            const filterVal = tHeaderId;
            const list = tableinfo;
            const data = this.$formatJson(filterVal, list);
            export_json_to_excel(tHeaderTitle, data, excelTile);
          })
        },
        $formatJson(filterVal, jsonData) {
          return jsonData.map((v) => filterVal.map((j) => v[j]));
        }
      },
    })
  }
}

组册

import myPLugin from './Plugin'

Vue.use(myPLugin);

使用

this.$error(res.msg);