我想对上面的一个答案发表评论，但我还没有找到代表。

System.Diagnostics.Process.Start("explorer", "stackoverflow.com");

几乎工作，除非url有一个查询字符串，在这种情况下，这段代码只是打开一个文件资源管理器窗口。关键似乎是UseShellExecute标志，正如Alex Vang上面给出的答案(对其他关于在web浏览器中启动随机字符串的评论取模)。

如果我们使用Process.Start(URL)， dotnet核心将抛出一个错误。下面的代码将在dotnet核心工作。你可以添加任何浏览器，而不是Chrome。

var processes = Process.GetProcessesByName("Chrome");
var path  = processes.FirstOrDefault()?.MainModule?.FileName;
Process.Start(path,  url);

我是唯一一个害怕调用System.Diagnostics.Process.Start()的人吗?

        public bool OnBeforeBrowse(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, bool userGesture, bool isRedirect)
        {
            Request = request;
            string url = Request.Url;
            
            if (Request.TransitionType != TransitionType.LinkClicked)
            {   // We are only changing the behavoir when someone clicks on a link.
                // Let the embedded browser handle this request itself.
                return false;
            }
            else
            {   // The user clicked on a link.  Something like a filter icon, which links to the help for that filter.
                // We open a new window for that request.  This window cannot change.  It is running a JavaScript
                // application that is talking with the C# main program.
                Uri uri = new Uri(url);
                try
                {
                    switch (uri.Scheme)
                    {
                        case "http":
                        case "https":
                            {   // Stack overflow says that this next line is *the* way to open a URL in the
                                // default browser.  I don't trust it.  Seems like a potential security
                                // flaw to read a string from the network then run it from the shell.  This
                                // way I'm at least verifying that it is an http request and will start a
                                // browser.  The Uri object will also verify and sanitize the URL.
                                System.Diagnostics.Process.Start(uri.ToString());
                                break;
                            }
                        case "showdevtools":
                            {
                                WebBrowser.ShowDevTools();
                                break;
                            }
                    }
                }
                catch { }
                // Tell the browser to cancel the navigation.
                return true;
            }
        }

这段代码被设计用于CefSharp，但应该很容易适应。

你试过这里提到的Processas: http://msdn.microsoft.com/de-de/library/system.diagnostics.process.aspx吗?

你可以用

Process myProcess = new Process();

try
{
    // true is the default, but it is important not to set it to false
    myProcess.StartInfo.UseShellExecute = true; 
    myProcess.StartInfo.FileName = "http://some.domain.tld/bla";
    myProcess.Start();
}
catch (Exception e)
{
    Console.WriteLine(e.Message);
}

试试这个，老派的方法;)

public static void openit(string x)
    {
        System.Diagnostics.Process.Start("cmd", "/C start" + " " + x);
    }

使用:openit(“www.google.com”);

对于那些发现这个问题的dotnet核心。我在这里找到了解决办法

代码:

private void OpenUrl(string url)
{
    try
    {
        Process.Start(url);
    }
    catch
    {
        // hack because of this: https://github.com/dotnet/corefx/issues/10361
        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
        {
            url = url.Replace("&", "^&");
            Process.Start(new ProcessStartInfo(url) { UseShellExecute = true });
        }
        else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
        {
            Process.Start("xdg-open", url);
        }
        else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
        {
            Process.Start("open", url);
        }
        else
        {
            throw;
        }
    }
}