const downloadExampleUrl = require('../../../../config').downloadExampleUrl Page({ onShareAppMessage() { return { title: '下载文件', path: 'page/API/pages/download-file/download-file' } }, downloadImage() { const self = this wx.downloadFile({ url: downloadExampleUrl, success(res) { console.log('downloadFile success, res is', res) self.setData({ imageSrc: res.tempFilePath }) }, fail({errMsg}) { console.log('downloadFile fail, err is:', errMsg) } }) } })