环境：win10+vs2017+mfc
涉及到的内容：
1，位图的加载
CBitmap * m_Bitmap=new CBitmap;
m_BitMAP->m_hObject=LoadImage(NULL,"**.BMP",IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
2，位图的运算
CClientDc dc（this）;
dc.BitBlt(dc.BitBlt(x, 300, 63,154, m_Dc,63,0, SRCAND);//颜色按位与
***SRCPAINT;//颜色按位或
***SRCCOPY;//颜色覆盖
用到的类：
最基本肯定是少不了CMyApp和CMyWnd（上一篇博客已经说到）
其余的则是与位图操作相关，绘图相关的
主要是CDC和CBitmap
CDC:
MSDN说明：
The CDC object provides member functions for working with a device context, such as a display or printer, as well as members for working with a display context associated with the client area of a window.
大意是说CDC提供成员函数处理设备环境，比如显示和打印，也是处理窗口的客户区域显示，这里贴图主要是使用到后者，对客户区域的显示
CBitmap:大意是说，构建与位图相关联的对象，相当于java中的File对象，构建操作文件的对象
To use a CBitmap object, construct the object, attach a bitmap handle to it with one of the initialization member functions, and then call the object's member functions.
代码实现：
#include
class CMyWnd :public CFrameWnd {
private:
CDC * mdc;
CBitmap *mbmp,*mbmpBack;
public: