WM_KEYDOWN 0x100 //键盘按下
WM_KEYUP 0x101 //键盘弹起
WM_CHAR 0x102 //字符
WM_MOUSEMOVE 0x200 //鼠标移动
WM_LBUTTONDOWN 0x201 //鼠标左键按下
WM_LBUTTONUP 0x202 //鼠标左键弹起
