win安装eigen

安装
1、需要注意的是，需要将解压后的eigen目录粘贴到工程文件夹，而不是整个解压的文件夹。
2、修改的配置文件

{
     
    "configurations": [
        {
     
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**",
                "C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/include",
                "C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/include-fixed",
                "C:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/include"


            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath":"C:\\mingw64\\bin\\g++.exe",
            "intelliSenseMode": "gcc-x64"
        }
    ],
    "version": 4
}

3、附第一次成功运行的程序

#include "Eigen/Core"
#include "iostream"
#include 
using namespace Eigen;
int main()
{
     
Matrix<int,3,4,ColMajor> a;
a << 1,2,3,4,
     5,6,5,4,
     4,4,4,4;

std::cout<<a;
system("pause");
return 0;
}