我是vc++菜鸟,写windows程序时，编译生成exe文件运行cpu 占用率100%????
我是vc++菜鸟,写windows程序时，编译生成exe文件运行cpu 占用率100%????

#include "windows.h"
#include "stdio.h"
#include "string.h"

LRESULT CALLBACK WinProc(HWND hWnd,UINT Message,WPARAM wParam,LPARAM lParam);


int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
        {
            HWND hWnd;
            MSG Message;
            WNDCLASS WndClass;
            WndClass.hInstance=hInstance;
            WndClass.lpfnWndProc=WinProc;
            WndClass.lpszClassName="whyan";
            WndClass.lpszMenuName=NULL;
            WndClass.style=0;
            WndClass.cbClsExtra=0;
            WndClass.cbWndExtra=0;
            WndClass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
            WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
            WndClass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
            RegisterClass(&WndClass);

            hWnd=CreateWindow("whyan","whyan",WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);
            ShowWindow(hWnd,SW_SHOWNORMAL);
            UpdateWindow(hWnd);

            while(GetMessage(&Message,hWnd,0,0))
            {
                TranslateMessage(&Message);
                DispatchMessage(&Message);
            }
            return Message.wParam;
        }

LRESULT CALLBACK WinProc(HWND hWnd,UINT Message,WPARAM wParam,LPARAM lParam)
        {
            HDC hdc;
            HBRUSH hbrush;
            HPEN pen;
            PAINTSTRUCT pstr;
               
            switch (Message)
            {
            case WM_PAINT:
                hdc=BeginPaint(hWnd,&pstr);
                SetMapMode(hdc,MM_ANISOTROPIC);
                pen=(HPEN)GetStockObject(BLACK_PEN);
                hbrush=(HBRUSH)GetStockObject(DKGRAY_BRUSH);
                SelectObject(hdc,hbrush);
                SelectObject(hdc,pen);
                RoundRect(hdc,50,120,100,200,15,15);
                EndPaint(hWnd,&pstr);
            case WM_DESTROY:
                PostQuitMessage(0);
               
            default:
                return(DefWindowProc(hWnd,Message,wParam,lParam));
            }
            //return 0;
        }

你的消息获取函数GetMessage(&Message,hWnd,0,0))指定只是获取窗口的消息所以当你运行程序的时候由于窗口刚开始没有消息产生，所以while循环会马上陷入死循环，所以你把GetMessage函数的第二个参数变为NULL，还有你的switch语句中的case 后面没加break;如果这样你的窗口会刚一创建就会被销毁

谢谢指导,请问你有QQ吗，想拜你为师，以后多多指导！！

呵呵，其实我是把你的程序和我原来写的程序一行行的比对才发现的问题，所以我也不见得比你厉害

你有没有ＱＱ？网海无边，知音难求？交个朋友好吗？

wc.lpszMenuName     = MAKEINTRESOURCE(LoadMenu(hInstance, MAKEINTRESOURCE(IDR_MENU)));

就是加载菜单ID为IDR_MENU的菜单到窗口