http并行下载的实现方式

import { request } from '@kit.BasicServicesKit';
import { BusinessError } from '@kit.BasicServicesKit';

let downloadTask: request.DownloadTask;
try {
  request.downloadFile(getContext(), { url: 'https://xxxx/xxxx.hap' }).then((data: request.DownloadTask) => {
    downloadTask = data;
  }).catch((err: BusinessError) => {
    console.error(`Failed to request the download. Code: ${err.code}, message: ${err.message}`);
  })
} catch (err) {
  console.error(`Failed to request the download. err: ${JSON.stringify(err)}`);
}
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