問(wèn)題：當(dāng)axios發(fā)起post請(qǐng)求，后端返回的是二進(jìn)制流excel文件，前臺(tái)獲取response時(shí)出現(xiàn)亂碼問(wèn)題，求解決方法response返回亂碼數(shù)據(jù)。 downloadModel(){        // window.location.href = window.open(axios.defaults.baseURL +'/settlement/payableCheck/download/template');        // let downLoadModel = window.open();        // let fileDownload = require('js-file-download');        this.$post('/settlement/payableCheck/download/template',{params:null},{responseType: 'arraybuffer'}).then(res => {        // this.$get('/settlement/payableCheck/download/template').then(res => {          console.log(res);          // let fileName = res.headers['content-disposition'].match(/fushun(\S*)xls/)[0];          // fileDownload(res,fileName);          let blob = new Blob([res], {type: "application/vnd.ms-excel;charset=utf-8"});          // let objectUrl = URL.createObjectURL(blob);          // window.location.href = objectUrl;          var link = document.createElement('a');          link.href = window.URL.createObjectURL(blob);          link.download = "對(duì)賬模板";          link.click();        }).catch((e) => {          this.$message.warning('下載失敗');          console.log(e);        })      },強(qiáng)行text打開(kāi)還是亂碼