- 当前 Bug 的表现（可附上截图）

- 预期表现

控制台可以打印出：下载进度...

- 复现路径

- 提供一个最简复现 Demo

var loadSubPack = function () {

var loadingScene = require('src/loading-scene');

cc.director.runSceneImmediate(loadingScene);

const logger = wx.getLogManager();

logger.warn('开始加载分包...', Date.now());

let subtask = wx.loadSubpackage({

name: 'sub_pack',

success: function (res) {

logger.info('load sub_pack success...', Date.now());

console.log('分包加载成功后通过 success 回调');

try {

onStart();

} catch (ex) {

logger.warn('call onStart() failed', ex);

}

},

fail: function (res) {

logger.warn('call onStart() failed', ex);

const logger = wx.getLogManager();

logger.warn('分包加载失败通过 fail 回调', res);

log

ger.info('load sub_pack fail...', Date.now());

},

});

subtask.onProgressUpdate(res => {

console.log('下载进度', res.progress)

console.log('已经下载的数据长度', res.totalBytesWritten)

console.log('预期需要下载的数据总长度', res.totalBytesExpectedToWrite)

})