Download
[下载] 对象通过 Page.Download 事件按页面分发。
当浏览器上下文关闭时，属于浏览器上下文的所有下载文件都将被删除。
🌐 All the downloaded files belonging to the browser context are deleted when the browser context is closed.
一旦下载开始，会触发下载事件。下载完成后，下载路径将可用。
🌐 Download event is emitted once the download starts. Download path becomes available once download completes.
// Start the task of waiting for the download before clicking
var waitForDownloadTask = page.WaitForDownloadAsync();
await page.GetByText("Download file").ClickAsync();
var download = await waitForDownloadTask;
// Wait for the download process to complete and save the downloaded file somewhere
await download.SaveAsAsync("/path/to/save/at/" + download.SuggestedFilename);
方法
🌐 Methods
CancelAsync
Added in: v1.13取消下载。如果下载已经完成或已被取消，将不会失败。取消成功后，download.failure() 将解析为 'canceled'。
🌐 Cancels a download. Will not fail if the download is already finished or canceled. Upon successful cancellations, download.failure() would resolve to 'canceled'.
用法
await Download.CancelAsync();
返回
CreateReadStreamAsync
Added before v1.9成功下载时返回可读流，下载失败/取消时抛出异常。
🌐 Returns a readable stream for a successful download, or throws for a failed/canceled download.
如果你不需要可读流，通常在下载完成后直接从磁盘读取文件会更简单。参见 Download.PathAsync()。
🌐 If you don't need a readable stream, it's usually simpler to read the file from disk after the download completed. See Download.PathAsync().
用法
await Download.CreateReadStreamAsync();
返回
- [Stream]#
DeleteAsync
Added before v1.9删除已下载的文件。如果有必要，会等待下载完成。
🌐 Deletes the downloaded file. Will wait for the download to finish if necessary.
用法
await Download.DeleteAsync();
返回
FailureAsync
Added before v1.9如果有任何下载错误，将返回错误。如有必要，会等待下载完成。
🌐 Returns download error if any. Will wait for the download to finish if necessary.
用法
await Download.FailureAsync();
返回
Page
Added in: v1.12获取下载所属的页面。
🌐 Get the page that the download belongs to.
用法
Download.Page
返回
PathAsync
Added before v1.9返回已成功下载文件的路径，或在下载失败/取消时抛出异常。如果必要，该方法会等待下载完成。远程连接时，该方法会抛出异常。
🌐 Returns path to the downloaded file for a successful download, or throws for a failed/canceled download. The method will wait for the download to finish if necessary. The method throws when connected remotely.
请注意，下载的文件名是一个随机的 GUID，可以使用 Download.SuggestedFilename 获取建议的文件名。
🌐 Note that the download's file name is a random GUID, use Download.SuggestedFilename to get suggested file name.
用法
await Download.PathAsync();
返回
SaveAsAsync
Added before v1.9将下载内容复制到用户指定的路径。在下载仍在进行时调用此方法是安全的。如有必要，将等待下载完成。
🌐 Copy the download to a user-specified path. It is safe to call this method while the download is still in progress. Will wait for the download to finish if necessary.
用法
await download.SaveAsAsync("/path/to/save/at/" + download.SuggestedFilename);
参数
返回
SuggestedFilename
Added before v1.9返回此下载的建议文件名。通常由浏览器根据 Content-Disposition 响应头或 download 属性计算得出。有关详细规范，请参见 whatwg。不同的浏览器可能使用不同的逻辑来计算它。
🌐 Returns suggested filename for this download. It is typically computed by the browser from the Content-Disposition response header or the download attribute. See the spec on whatwg. Different browsers can use different logic for computing it.
用法
Download.SuggestedFilename
返回
Url
Added before v1.9返回下载的 url。
🌐 Returns downloaded url.
用法
Download.Url
返回