/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
// TODO: Add your initialization logic here
startComponent = new StartComponent(this);
gameComponent = new MyGameComponent(this);
endComponent = new EndComponent(this);
Components.Add(startComponent);
Resourse.init(Content); //初始化全局纹理类 ,应该放在LoadContent里,但测试的时候发现会空指针,应该是先执行了 Components的LoadContent,才会这样
this.IsMouseVisible = true;
base.Initialize();
}