为什么我的窗口没有显示？进程在的！

#include<Windows.h>
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,
   HINSTANCE PreInstance,
   LPSTR lpCmdLine,
   int nCmdShow){
HWND hWnd;
MSG msg; 
char lpszClassName[] ="we";
WNDCLASS wc;
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL,IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL,IDC_ARROW);
wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = lpszClassName;
 hWnd = CreateWindow(lpszClassName,
 "windows",
 WS_OVERLAPPEDWINDOW,
 120,50,800,600,
 NULL,
 NULL,
 hInstance,
 NULL);
 ShowWindow(hWnd,nCmdShow);
UpdateWindow(hWnd);
while(GetMessage(&msg,NULL,0,0)){
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}LRESULT CALLBACK WndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam){
switch(message){
case WM_LBUTTONDOWN:
MessageBeep(0);break;
case WM_DESTROY:
PostQuitMessage(0);break;
default:
return DefWindowProc(hWnd,message,wParam,lParam);
}
return 0;
}