worker.onMessage(res => {

console.log('子线程内接收信息',res);

console.log('IOS_worker',worker);

if (res.msg == 'start') {

globalThis.dlTest();

} 

// else {

// globalThis.downloadTask.abort();

// }

});

globalThis.dlTest = () => {

const downloadTask = worker.downloadFile({

url:`https://cesu.ha.chinamobile.com/speed/200000.data?cors=true&r=${Math.random()}&ckSize=100`,

success: (res) => {

},

complete:(info) => {

console.log('下载文件回调(不区分成功失败)',info);

}

});

console.log(downloadTask);

downloadTask.onProgressUpdate(event => {

console.log('progress',event);

});

}