# 头文件的搜索路径

讨论一下Visual Studio中头文件的搜索路径

系统自带的头文件用尖括号括起来，这样编译器会在系统文件目录下查找。

\#include \<xxx.h> 2， 用户自定义的文件用双引号括起来，编译器首先会在用户目录下查找，然后在到C++安装目录（比如VC中可以指定和修改库文件查找路径，Unix和Linux中可以通过环境变量来设定）中查找，最后在系统文件中查找。 #include “xxx.h”&#x20;

项目-属性-VC++目录-包含目录

{% embed url="<https://blog.csdn.net/jimmyleeee/article/details/83269945>" %}

<figure><img src="/files/txpHdnKygCfhn3ieGiKj" alt=""><figcaption></figcaption></figure>

通过红色部分可以看到头文件的包含路径是：$(VC\_IncludePath);$(WindowsSDK\_IncludePath); 这里是两个两个变量，还是不知道具体包含了哪些路径。

这两个变量到底包含哪些路径呢？

C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.38.33130\include

C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.38.33130\atlmfc\include

以我目前的理解，应该很多系统自带的头文件都在这里面

那么如果我想搞一个新的库文件，是不是可以直接复制到这个目录下面

或者从项目-属性-VC++目录-包含目录这里新增


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