参考：https://github.com/cefsharp/CefSharp/issues/601
https://gist.github.com/BlackBooth/19ce027c4f68c1eb4fc1144988ca6662

关键点：
（1）设置CefSettings的BrowserSubprocessPath属性为对应的CefSharp.BrowserSubprocess.exe的路径；
（2）在Program.cs中加载相关程序集；

将Cefsharp相关库放到bin\Debug\cefLib目录中

添加CefSharp类库引用，并把相关库的属性（复制本地）设置为false，这样VS就不会自动复制相关库到运行目录下；

修改Program.cs的代码如下， 注：在Program.cs中不能引用相关的Cefsharp相关库，否则会加载Cefsharp程序集失败；

static class Program

    {

        /// 


        /// 应用程序的主入口点。

        /// 


        [STAThread]

        static void Main()

        {

            AppDomain.CurrentDomain.AssemblyResolve += OnResolveAssembly;

            CefSettingClass.InitializeCefSetting();

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            Application.Run(new MainForm());

        }



        //解析程序集失败，会加载对应的程序集

        private static Assembly OnResolveAssembly(object sender, ResolveEventArgs args)

        {

            Assembly executingAssembly = Assembly.GetExecutingAssembly();

            AssemblyName assemblyName = new AssemblyName(args.Name);



            var assemblyAllName = assemblyName.Name + ".dll";

            //加载CefSharp相关库

            if (args.Name.StartsWith("CefSharp"))

            {

                string assemblyPath = Path.Combine(Application.StartupPath, CefSettingClass.CefLibName, assemblyAllName);

                return File.Exists(assemblyPath) ? Assembly.LoadFile(assemblyPath) : null;

            }

            //判断程序集的区域性

            if (!assemblyName.CultureInfo.Equals(CultureInfo.InvariantCulture))

            {

                assemblyAllName = string.Format(@"{0}\{1}", assemblyName.CultureInfo, assemblyAllName);

            }



            using (Stream stream = executingAssembly.GetManifestResourceStream(assemblyAllName))

            {

                if (stream == null) return null;



                var assemblyRawBytes = new byte[stream.Length];

                stream.Read(assemblyRawBytes, 0, assemblyRawBytes.Length);

                return Assembly.Load(assemblyRawBytes);

            }

        }



    }

新增CefSettingClass类，用于初始化CefSharp;

class CefSettingClass

    {

        public const string CefLibName = "cefLib"; //cef目录名称



        /// 


        /// 初始化CEF的配置

        /// 


        public static void InitializeCefSetting()

        {

            string appPath = Application.StartupPath;

            CefSettings settings = new CefSettings

            {

                Locale = "zh-CN", //中文

                BrowserSubprocessPath = Path.Combine(appPath, CefLibName, "CefSharp.BrowserSubprocess.exe"), //设置浏览器子程序启动路径

            };

            Cef.Initialize(settings);

        }



    }

主窗口代码如下，初始化并添加浏览器控件到主窗口中：

public partial class MainForm : Form

    {

        private ChromiumWebBrowser browser;



        public MainForm()

        {

            InitializeComponent();

        }



        private void MainForm_Load(object sender, EventArgs e)

        {

            browser = new ChromiumWebBrowser("https://www.baidu.com")

            {

                Dock = DockStyle.Fill

            };

            this.Controls.Add(browser);

            this.Closing += OnClosing;

        }



        private void OnClosing(object sender, CancelEventArgs e)

        {

            Cef.Shutdown();

        }

    }

最终的程序运行目录和运行结果如下：