《纽约时报》正在维护一个 GitHub 存储库，地址为 https://github.com/nytimes/covid-19-data 。该存储库包含许可证、自述文件和两个数据文件。数据文件为 us-states.csv 和 us-counties.csv。两者都包含按州或县划分的每日 COVID-19 病例数和死亡人数的时间序列集合。
我正在尝试下载 us-states.csv 文件。我开发的程序是:
using System;
using System.Net;
namespace NYTimes_Console
{
// ************************************************* class Program
class Program
{
// ****************************************************** Main
static void Main ( string [ ] args )
{
byte [ ] bytes;
string url =
"https://raw.githubusercontent.com/nytimes/" +
"covid-19-data/blob/master/us-states.csv";
//string url =
// "https://github.com/nytimes/" +
// "covid-19-data/blob/master/us-states.csv";
try
{
using ( WebClient client = new WebClient ( ) )
{
client.Headers.Add("user-agent", "Anything");
bytes = client.DownloadData ( url );
}
Console.WriteLine ( "Download Successful" );
}
catch ( Exception ex )
{
Console.WriteLine ( "Download Failed\n{0}",
ex.Message.ToString ( ) );
}
Console.Write ( "Enter to exit");
Console.ReadLine ( );
}
} // class Program
} // namespace NYTimes_Console
当网址为“https://github.com/nytimes/covid-19-data/blob/master/us-states.csv ”时，我收到以下内容:
Download Failed
The underlying connection was closed: An unexpected error occurred on a send.
当我查看异常时，我发现:
InnerException = {"Received an unexpected EOF or 0 bytes from the transport stream."}
当网址为“https://raw.githubusercontent.com/nytimes/covid-19-data/blob/master/us-states.csv ”时，我收到以下内容:
Download Failed
The remote server returned an error: (404) Not Found.
并且 InnerException 为 null。
我似乎误解了 GitHub 存储库以及对它们的访问。
最佳答案
你可以尝试这样解决:
string url = "https://raw.githubusercontent.com/nytimes/covid-19-data/master/us-states.csv";
关于c# - 如何使用 C# 以编程方式下载 GitHub 数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/61037876/