Question

各位大虾,小弟刚学C++,编译的时候遇到这个错误,该如何处理?请各位帮帮忙,因为我的财富为5,最多也那么多了，

#include<windows.h>
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInst,
LPSTR lpszCmdLine,
int nCmdShow
)
{
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
char lpszClassName[]="vb";
char lpseTitle[]="lpseTitle";
wndclass.style=0;
wndclass.lpfnWndProc=WndProc;
wndclass.cbClsExtra=0;
wndclass.cbWndExtra=0;
wndclass.hInstance=hInstance;
wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
wndclass.hCursor=LoadCursor(NULL,IDC_ARROW);
wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName=NULL;
wndclass.lpszClassName=lpszClassName;
if (!RegisterClass(&wndclass))
{
MessageBeep(0);
return FALSE;
}
hwnd=CreateWindow(
lpszClassName,
lpseTitle,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
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_DESTROY:
PostQuitMessage(0);
default:
return DefWindowProc(hwnd,message,wParam,lParam);
}
return(0);
};
以下是错误信息
Linking...
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/vc.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

Answer 1

原因：
在建项目或工程时把Win32 Application与Win32 Console Application弄错了

libcmtd.lib(crt0.obj) : error LNK2001: unresolved external symbol _main

Windows项目要使用Windows子系统, 而不是Console, 可以这样设置:
[Project] --> [Settings] --> 选择"Link"属性页,
在Project Options中将/subsystem:console改成/subsystem:windows