㈠ C++出现“无法打开预编译头文件”错误
出错的原因是包含了预编译头文件stdafx.h。但其实这种简单的命令行程序并不需要。
在创建工程的时候，在向导的第一个对话框里，勾选“空项目”复选框。这样就不会出现这个错误了。
㈡ 用vc建立windows32api程序，编译时显示不能打开头文件windows.h 怎么弄
自己找到include 文件夹 新建个 txt文件 名字改成 windows.h
然后复制 粘贴进去保存
/*++ BUILD Version: 0001 Increment this if a change has global effects
Copyright (c) 1985-1997, Microsoft Corporation
Mole Name:
windows.h
Abstract:
Master include file for Windows applications.
--*/
#ifndef _WINDOWS_
#define _WINDOWS_
#ifndef WINVER
#define WINVER 0x0400
#else
#if defined(_WIN32_WINNT) && (WINVER < 0x0400) && (_WIN32_WINNT > 0x0400)
#error WINVER setting conflicts with _WIN32_WINNT setting
#endif
#endif
#if(WINVER >= 0x0500)
#pragma message ("")
#pragma message ("NOTE: WINVER has been defined as 0x0500 or greater which enables")
#pragma message ("Windows NT 5.0 and Windows 98 features. When these headers were released,")
#pragma message ("Windows NT 5.0 beta 1 and Windows 98 beta 2.1 were the current versions.")
#pragma message ("")
#pragma message ("For this release when WINVER is defined as 0x0500 or greater, you can only")
#pragma message ("build beta or test applications. To build a retail application,")
#pragma message ("set WINVER to 0x0400 or visit http://www.microsoft.com/msdn/sdk")
#pragma message ("to see if retail Windows NT 5.0 or Windows 98 headers are available.")
#pragma message ("")
#pragma message ("See the SDK release notes for more information.")
#pragma message ("")
#endif
#ifndef _INC_WINDOWS
#define _INC_WINDOWS
#if defined (_MSC_VER) && (_MSC_VER >= 1020)
#pragma once
#endif
/* If defined, the following flags inhibit definition
* of the indicated items.
*
* NOGDICAPMASKS - CC_*, LC_*, PC_*, CP_*, TC_*, RC_
* NOVIRTUALKEYCODES - VK_*
* NOWINMESSAGES - WM_*, EM_*, LB_*, CB_*
* NOWINSTYLES - WS_*, CS_*, ES_*, LBS_*, SBS_*, CBS_*
* NOSYSMETRICS - SM_*
* NOMENUS - MF_*
* NOICONS - IDI_*
* NOKEYSTATES - MK_*
* NOSYSCOMMANDS - SC_*
* NORASTEROPS - Binary and Tertiary raster ops
* NOSHOWWINDOW - SW_*
* OEMRESOURCE - OEM Resource values
* NOATOM - Atom Manager routines
* NOCLIPBOARD - Clipboard routines
* NOCOLOR - Screen colors
* NOCTLMGR - Control and Dialog routines
* NODRAWTEXT - DrawText() and DT_*
* NOGDI - All GDI defines and routines
* NOKERNEL - All KERNEL defines and routines
* NOUSER - All USER defines and routines
* NONLS - All NLS defines and routines
* NOMB - MB_* and MessageBox()
* NOMEMMGR - GMEM_*, LMEM_*, GHND, LHND, associated routines
* NOMETAFILE - typedef METAFILEPICT
* NOMINMAX - Macros min(a,b) and max(a,b)
* NOMSG - typedef MSG and associated routines
* NOOPENFILE - OpenFile(), OemToAnsi, AnsiToOem, and OF_*
* NOSCROLL - SB_* and scrolling routines
* NOSERVICE - All Service Controller routines, SERVICE_ equates, etc.
* NOSOUND - Sound driver routines
* NOTEXTMETRIC - typedef TEXTMETRIC and associated routines
* NOWH - SetWindowsHook and WH_*
* NOWINOFFSETS - GWL_*, GCL_*, associated routines
* NOCOMM - COMM driver routines
* NOKANJI - Kanji support stuff.
* NOHELP - Help engine interface.
* NOPROFILER - Profiler interface.
* NODEFERWINDOWPOS - DeferWindowPos routines
* NOMCX - Modem Configuration Extensions
*/
#if defined(RC_INVOKED) && !defined(NOWINRES)
#include <winresrc.h>
#else
#if defined(RC_INVOKED)
/* Turn off a bunch of stuff to ensure that RC files compile OK. */
#define NOATOM
#define NOGDI
#define NOGDICAPMASKS
#define NOMETAFILE
#define NOMINMAX
#define NOMSG
#define NOOPENFILE
#define NORASTEROPS
#define NOSCROLL
#define NOSOUND
#define NOSYSMETRICS
#define NOTEXTMETRIC
#define NOWH
#define NOCOMM
#define NOKANJI
#define NOCRYPT
#define NOMCX
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_MIPS_) && !defined(_X86_) && defined(_M_IX86)
#define _X86_
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_X86_) && !defined(_MIPS_) && defined(_M_MRX000)
#define _MIPS_
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_X86_) && !defined(_MIPS_) && defined(_M_ALPHA)
#define _ALPHA_
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_X86_) && !defined(_MIPS_) && defined(_M_PPC)
#define _PPC_
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_X86_) && !defined(_MIPS_) && defined(_M_M68K)
#define _68K_
#endif
#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_X86_) && !defined(_MIPS_) && defined(_M_MPPC)
#define _MPPC_
#endif
#ifndef _MAC
#if defined(_68K_) || defined(_MPPC_)
#define _MAC
#endif
#endif
#ifndef RC_INVOKED
#if ( _MSC_VER >= 800 )
#pragma warning(disable:4001)
#pragma warning(disable:4201)
#pragma warning(disable:4214)
#pragma warning(disable:4514)
#endif
#include <excpt.h>
#include <stdarg.h>
#endif /* RC_INVOKED */
#include <windef.h>
#include <winbase.h>
#include <wingdi.h>
#include <winuser.h>
#ifdef _MAC
DECLARE_HANDLE(HKEY);
typedef HKEY *PHKEY;
#endif
#if !defined(_MAC) || defined(_WIN32NLS)
#include <winnls.h>
#endif
#ifndef _MAC
#include <wincon.h>
#include <winver.h>
#endif
#if !defined(_MAC) || defined(_WIN32REG)
#include <winreg.h>
#endif
#ifndef _MAC
#include <winnetwk.h>
#endif
#ifndef WIN32_LEAN_AND_MEAN
#include <cderr.h>
#include <dde.h>
#include <ddeml.h>
#include <dlgs.h>
#ifndef _MAC
#include <lzexpand.h>
#include <mmsystem.h>
#include <nb30.h>
#include <rpc.h>
#endif
#include <shellapi.h>
#ifndef _MAC
#include <winperf.h>
#if(_WIN32_WINNT >= 0x0400)
#include <winsock2.h>
#include <mswsock.h>
#else
#include <winsock.h>
#endif /* _WIN32_WINNT >= 0x0400 */
#endif
#ifndef NOCRYPT
#include <wincrypt.h>
#endif
#ifndef NOGDI
#include <commdlg.h>
#ifndef _MAC
#include <winspool.h>
#ifdef INC_OLE1
#include <ole.h>
#else
#include <ole2.h>
#endif /* !INC_OLE1 */
#endif /* !MAC */
#endif /* !NOGDI */
#endif /* WIN32_LEAN_AND_MEAN */
#ifdef _MAC
#include <winwlm.h>
#endif
#ifdef INC_OLE2
#include <ole2.h>
#endif /* INC_OLE2 */
#ifndef _MAC
#ifndef NOSERVICE
#include <winsvc.h>
#endif
#if(WINVER >= 0x0400)
#ifndef NOMCX
#include <mcx.h>
#endif /* NOMCX */
#ifndef NOIME
#include <imm.h>
#endif
#endif /* WINVER >= 0x0400 */
#endif
#ifndef RC_INVOKED
#if ( _MSC_VER >= 800 )
#pragma warning(default:4001)
#pragma warning(default:4201)
#pragma warning(default:4214)
/* Leave 4514 disabled. It's a stupid warning anyway. */
#endif
#endif /* RC_INVOKED */
#endif /* RC_INVOKED */
#endif /* _INC_WINDOWS */
#endif /* _WINDOWS_ */
㈢ 单片机c语言编译时无法打开自已写的头文件
你自己编写的头文件吗？如果是你自己编写的头文件，包含进源程序时头文件应该写成" "符号进行包含，而不是< >符号，例如你自己写了一个.h文件叫做def.h，要包含进去就要写成#include"def.h"而不是#include<def.h>，<>是针对与于标准路径，看看你是不是这个地方错了，也可以把你的头文件添加到标准路径也可以
㈣ fatal error C1083: 无法打开预编译头文件:“Debug\a.pch”: No such file or dir
在 project->settings-> c/c++
Category 选pre compiled headers
选Not using precompiled header
应该就可以了吧
㈤ C语言源文件编译时找不到头文件
首先看看这几个头文件是否存在？
如果存在记下存放的路径，检查头文件的配置，即查看makefile，看看头文件寻找路径是否有刚才的那个路径。
如果不存在这几个头文件的话，那就去找找这几个头文件，有可能需要安装一些库文件
㈥ C语言，头文件总是无法在编译中出错
可能是你编译器设置的问题，看看设置的缺省目录是否正确。另外当前目录包含头文件用双引号不用尖括号即：
#include "stdint.h"