// 云函数入口文件

const cloud = require('wx-server-sdk')

cloud.init()

// 云函数入口函数

exports.main = async(event, context) => {

let buffer = new Buffer("我是谁 我来自哪里 我要干啥", "utf-8");

//上传文件

const upload = await cloud.uploadFile({

cloudPath: 'testTxt.txt',

fileContent: buffer,

})

//读取文件

const res = await cloud.downloadFile({

fileID: upload.fileID

});

//获取文件内容  

const d_buffer = res.fileContent;

return {

upload,

//文件内容转utf8

txt: d_buffer.toString('utf8')

};

}