C# Visual Studio 2015中实现枚举时出现的随机非相关错误

正如标题所示，当我注释出与枚举相关的内容时，会出现随机错误。我评论了错误出现的地方以及vs告诉我的内容

namespace Overbox
{
    class UpdateHandler
    {
        public enum GameState { MainMenu, Options, Playing, GameOver, Exiting };

        public UpdateHandler()
        //Below bracket tells me "} expected" (ive counted and unless i cant do basic math there is a correct amount of brackets)
        {
            public GameState currentGameState = GameState.MainMenu;
        }
        //Update tells me "A namespace cannot directly contain members such as fields or methods" even though it actually is (even if the formatting is messing up a bit)
        public void Update(GameTime gameTime)
        {

        }
    }
}

---

最后一个括号告诉我“需要类型或命名空间定义，或文件结尾”

您试图从构造函数中声明字段：

public UpdateHandler()
//Below bracket tells me "} expected" (ive counted and unless i cant do basic math there is a correct amount of brackets)
{
    public GameState currentGameState = GameState.MainMenu;
}

public GameState currentGameState = GameState.MainMenu;

public UpdateHandler()
{

}

C#不允许这样做，您必须将声明带到外面：

public GameState currentGameState;

public UpdateHandler()
{
    currentGameState = GameState.MainMenu;
}

---

另一个选项是在构造函数之外设置字段的值：

public UpdateHandler()
//Below bracket tells me "} expected" (ive counted and unless i cant do basic math there is a correct amount of brackets)
{
    public GameState currentGameState = GameState.MainMenu;
}

public GameState currentGameState = GameState.MainMenu;

public UpdateHandler()
{

}

---

在我看来，这似乎是您试图实现的目标，但定位有点错误。

您的代码应该是这样的

namespace Overbox
{
    class UpdateHandler
    {
        public enum GameState 
        { 
            MainMenu, 
            Options, 
            Playing, 
            GameOver, 
            Exiting 
        };

        public GameState currentGameState;

        public UpdateHandler()
        {
            this.currentGameState = GameState.MainMenu;
        }
        public void Update(GameTime gameTime)
        {

        }
    }
}