合并分支 'crs' 到 'master'

src/tools/htmlToPdf.js

 // 导出页面为PDF格式
+import Vue from 'vue'
+let v = new Vue();
 import html2Canvas from 'html2canvas'
 import JsPDF from 'jspdf'
 export default {
     install (Vue, options) {
         Vue.prototype.getPdf = function () {
             let title = this.htmlTitle
+            v.$message.info('正在生成pdf文件！请稍等')
             html2Canvas(document.querySelector('#pdfDom'), {
                 allowTaint: true
             }).then(function (canvas) {