/// <summary>
/// 非密封类修饰用protected virtual
/// 密封类修饰用private
/// </summary>
/// <param name="disposing"></param>
protected virtual void Dispose(bool disposing)
{
if (derivedDisposed)
{
return;
}
if (disposing)
{
// 清理托管资源
if (derivedManagedResource != null)
{
derivedManagedResource.Dispose();
derivedManagedResource = null;
}
}
// 清理非托管资源
if (derivedNativeResource != IntPtr.Zero)
{
Marshal.FreeHGlobal(derivedNativeResource);
derivedNativeResource = IntPtr.Zero;
}
//调用父类的清理代码
base.Dispose(disposing);
//让类型知道自己已经被释放
derivedDisposed = true;
}
/// <summary>
/// 使用受保护的虚方法，考虑类继承调用
/// 非密封类修饰用protected virtual
/// 密封类修饰用private
/// </summary>
/// <param name="isDispose"></param>
protected virtual void Dispose(bool isDispose)
{
if (m_isDisposed)
{
return;
}
//显式的调用Dispose需要手工的清理对象本身托管资源，而终结器调用不需要手工清理
if (isDispose)
{
//清理托管资源
if (m_manageResource != null)
{
//对象被dispose不表示该对象为null
m_manageResource.Dispose();
m_manageResource = null;
}
}
//清理非托管资源
if (m_nativeResource != IntPtr.Zero)
{
Marshal.FreeHGlobal(m_nativeResource);
m_nativeResource = IntPtr.Zero;
}
//指示资源已释放
m_isDisposed = true;
}
public void TestIn()
{
ProgrammerIn programmer = new ProgrammerIn()
{
Name = "Make"
};
ManagerIn manager = new ManagerIn()
{
Name = "pzi"
};
Test(programmer, manager);//如果不为IMyComparable接口的泛型参数T指定in关键字，将会导致编译出错
}