脚垫子怎么治:刚接触MFC，一个菜鸟问题：

刚刚接触MFC，照着教材试了一个程序：

#include <afxwin.h>
class MyWindow:public CFrameWnd
{
public:
MyWindow()
{
Create(NULL,"My Application Window");
MessageBox("Window Created","CFrameWnd Constructor");
}
}
class MyApp:public CWinApp
{
public:
BOOL InitInstance()
{
MyWindow *MywindowObject = new MyWindow;
m_pMainWnd = MywindowObject;
MywindowObject ->ShowWindow(SW_SHOWNORMAL);
return TRUE;
}
};
MyApp MyAppObject;

可是出现以下错误：

c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(11) : error C2236: unexpected 'class' 'MyApp'. Did you forget a ';'?
c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(11) : error C2143: syntax error : missing ';' before ':'
c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(5) : error C2059: syntax error : ':'
c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(7) : error C2664: 'CFrameWnd::Create' : cannot convert parameter 2 from 'const char [22]' to 'LPCTSTR'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(8) : error C2664: 'CWnd::MessageBoxW' : cannot convert parameter 1 from 'const char [15]' to 'LPCTSTR'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(11) : error C2059: syntax error : 'public'
c:\documents and settings\li hao\my documents\visual studio 2005\projects\project 1\sampleapplication\sampleapplication\sample.cpp(12) : error C2143: syntax error : missing ';' before '{'

已经照着把Use of MFC属性设置为Use MFC in a shared DLL了
不知道是什么地方有错误，请各位高手帮帮忙，谢了！！！！