c#初学者下载_如何为初学者视频下载80多种免费的101级C＃、. NET和ASP.NET，以供离线观看

c#初学者下载

Earlier this week I announced over 80 new free videos in our .NET Core 3.0 launch video series - Announcing free C#, .NET, and ASP.NET for beginners video courses and tutorials

本周早些时候，我在.NET Core 3.0发布视频系列中宣布了80多个新的免费视频-为初学者视频课程和教程宣布免费的C＃、. NET和ASP.NET。

Three questions came up consistently:

始终出现三个问题：

• My work or country blocks YouTube! What about me?
  我的工作或所在国家/地区阻止了YouTube！ 那我呢？
• How can I download these and watch them offline?
  如何下载这些内容并离线观看？
• I have very low bandwidth. Can I get smaller versions I can download over 3G/4G?
  我的带宽很低。 我可以得到可以通过3G / 4G下载的较小版本吗？

Here's some answers for you!

这是给您的一些答案！

我的工作或所在国家/地区阻止了YouTube！ 那我呢？ (My work or country blocks YouTube! What about me?)

First, we have updated http://dot.net/videos to include links to BOTH YouTube *and* to the same videos hosted on Microsoft's Channel 9, which shouldn't be blocked by you country or company!

首先，我们更新了http://dot.net/videos，以包括指向YouTube和*的链接，同时也指向Microsoft的Channel 9上托管的相同视频，而您所在的国家或公司则不应阻止！

如何下载这些内容并离线观看？ (How can I download these and watch them offline?)

Good question! Here's how to download a whole series with PowerShell! Let's say I want to download "C# 101."

好问题！ 这是使用PowerShell下载整个系列的方法！ 假设我要下载“ C＃101”。

First, head over to https://dot.net/videos.

首先，转到https://dot.net/videos 。

Second, click "Watch on Channel 9" there at the bottom of the series you want, in my case, C# 101.

其次，在您想要的系列的底部(在我的情况下为C＃101)单击“在频道9上观看”。

Note that there's a link there in the corner that says "RSS" - that's Really Simple Syndication!

请注意，角落里有一个链接，上面写着“ RSS”-这真的很简单！

Right click on the one you want, for example MP4 Low for people on low bandwidth connections! (Question #3 gets answered too, two for one!), and say "Copy Link Address." Now that link is in your clipboard!

右键单击您想要的一个，例如MP4 Low(低带宽连接人员)！ (问题3的答案也得到回答，两个一！)，然后说“复制链接地址”。 现在该链接在剪贴板中！

Next, I made a little PowerShell script and put it here in a Gist. If you want, you can right click on this link here and Save Link As and name it something like DownloadVideos.ps1. Maybe save it in C:\temp or c:\users\YOURNAME\Desktop\DotNetVideos. Whatever makes you happy. Make sure you saved it with a *.ps1 extension.

接下来，我制作了一个小PowerShell脚本并将其放在Gist中。 如果需要，可以右键单击此链接，然后将链接另存为，并命名为DownloadVideos.ps1。 也许将其保存在C：\ temp或c：\ users \ YOURNAME \ Desktop \ DotNetVideos中。 令您开心的事。 确保以* .ps1扩展名保存它。

Finally, open up the PS1 file in a text editor and check lines 2 and 3. Put in a path that's correct for YOUR computer, again, like C:\temp, or your downloads folder.

最后，在文本编辑器中打开PS1文件，并检查第2行和第3行。再次输入适合您计算机的路径，例如C：\ temp或您的下载文件夹。

#CHECK THE PATH ON LINE 2 and the FEED on LINE 3
cd "C:\users\scott\Downloads"
$a = ([xml](new-object net.webclient).downloadstring("https://channel9.msdn.com/Series/CSharp-101/feed/mp4"))
$a.rss.channel.item | foreach{  
    $url = New-Object System.Uri($_.enclosure.url)
    $file = $url.Segments[-1]
    $file
    if (!(test-path $file)) {
        (New-Object System.Net.WebClient).DownloadFile($url, $file)
    }
}

Make sure the RSS link that you copied earlier above is correct on line 3. We need a Local Folder and we need our Remote RSS Link.

确保您上面上面复制的RSS链接在第3行上正确无误。我们需要一个本地文件夹，我们需要我们的远程RSS链接。

NOTE: If you're an expert you might think this PowerShell script isn't fancy enough or doesn't do x or y, but it'll do pretty nicely for this project. You're welcome to fork it or improve it here.

注意：如果您是专家，您可能会认为此PowerShell脚本不够花哨，或者不执行x或y，但是对于该项目而言，它做得很好。 欢迎您在此处进行分叉或改进。

And finally, open up PowerShell on your machine from the Start Menu and run your downloadvideos.ps1 script like in this screenshot.

最后，从“开始”菜单打开计算机上的PowerShell，并运行此屏幕截图中的downloadvideos.ps1脚本。

如何获得低带宽视频，我可以通过慢速连接下载视频！ (What about getting Low Bandwidth videos I can download on a slow connection!)

The low bandwidth videos are super small, some smaller than a JPEG! The largest is just 20 megs, so the full C# course is under 200 megs total.

低带宽视频非常小，有些比JPEG小！ 最大的只有20兆，因此完整的C＃课程总计不到200兆。

You can download ALL the videos for EACH playlist by visiting http://dot.net/videos, getting the RSS URL for the video playlist you want, and running the PS1 script again with the changed URL on line 3.

您可以通过访问http://dot.net/videos下载每个播放列表的所有视频，获取所需视频播放列表的RSS URL，然后在第3行使用更改后的URL再次运行PS1脚本。

Hope this helps!

希望这可以帮助！

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翻译自: https://www.hanselman.com/blog/how-to-download-over-80-free-101level-c-net-and-aspnet-for-beginners-videos-for-offline-viewing

c#初学者下载