wx.downloadFile({

header: request.requestHeader(),

url: url,

filePath: rootPath,

success(res) {

const filePath = res.filePath

console.log('本地路径', filePath)

wx.openDocument({//打开文件

filePath: filePath,

showMenu: true, //显示右上角菜单

success: function (res) {

console.log('打开文档成功')

}

})

}

})