C# 如何在If语句中计算Enum？

我第一次尝试在代码中实现Enum。我有一个简单的自定义类，如下所示：

public class Application
{
    //Properties
    public string AppID { get; set; }
    public string AppName { get; set; }
    public string AppVer { get; set; }
    public enum AppInstallType { msi, exe }
    public string AppInstallArgs { get; set; }
    public string AppInstallerLocation { get; set; }
}

    public void Install()
    {
        if (AppInstallType.exe)
        {
            ProcessStartInfo procInfo = new ProcessStartInfo("cmd.exe");
            procInfo.Arguments = "/c msiexec.exe /i " + AppInstallerLocation + " " + AppInstallArgs; ;
            procInfo.WindowStyle = ProcessWindowStyle.Normal;

            Process proc = Process.Start(procInfo);
            proc.WaitForExit();
        }
        else
        {
            ProcessStartInfo procInfo = new ProcessStartInfo("cmd.exe");
            procInfo.Arguments = "/c " + AppInstallerLocation + " " + AppInstallArgs;
            procInfo.WindowStyle = ProcessWindowStyle.Normal;

            Process proc = Process.Start(procInfo);
            proc.WaitForExit();
        }
    }

我在该类中有一个名为Install（）的方法，如下所示：

public class Application
{
    //Properties
    public string AppID { get; set; }
    public string AppName { get; set; }
    public string AppVer { get; set; }
    public enum AppInstallType { msi, exe }
    public string AppInstallArgs { get; set; }
    public string AppInstallerLocation { get; set; }
}

    public void Install()
    {
        if (AppInstallType.exe)
        {
            ProcessStartInfo procInfo = new ProcessStartInfo("cmd.exe");
            procInfo.Arguments = "/c msiexec.exe /i " + AppInstallerLocation + " " + AppInstallArgs; ;
            procInfo.WindowStyle = ProcessWindowStyle.Normal;

            Process proc = Process.Start(procInfo);
            proc.WaitForExit();
        }
        else
        {
            ProcessStartInfo procInfo = new ProcessStartInfo("cmd.exe");
            procInfo.Arguments = "/c " + AppInstallerLocation + " " + AppInstallArgs;
            procInfo.WindowStyle = ProcessWindowStyle.Normal;

            Process proc = Process.Start(procInfo);
            proc.WaitForExit();
        }
    }

当AppInstallType是字符串时，我的安装方法开头的If语句工作正常（AppInstallType=“msi”）。当我将AppInstallType更改为枚举时，我似乎无法计算if语句的语法

如果可能的话，我希望避免向Install（）方法传递任何参数。只需在应用程序对象上调用install（）方法就可以安装应用程序，这将非常好，如下所示：

Application app1 = new Application;
app1.AppInstallType = msi;
app1.Install();

---

我该怎么办？提前感谢。

您没有声明Enum的实例，您只是声明了它

你需要

    public enum AppInstallType { msi, exe }

public class Application
{
    //Properties
    public string AppID { get; set; }
    public string AppName { get; set; }
    public string AppVer { get; set; }
    public string AppInstallArgs { get; set; }
    public AppInstallType InstallType;
    public string AppInstallerLocation { get; set; }
}

if(InstallType == AppInstallType.msi)