C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Java\jdk1.8.0_74\bin;C:\Java\jre1.8.0_74\bin;D:\program_files\OperaMasksStudio-7.1.1\eclipse\plugins\org.apache.ant_1.7.1.v20090120-1145\bin;D:\Program Files\apache-maven-3.3.9\bin;%MySQL_HOME%\bin;%CATALINA_HOME%\bin;D:\Program Files\db-derby-10.12.1.1-bin\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\SecureCRT\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\

=

%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;%JAVA_HOME%\bin;%JRE_HOME%\bin;%ANT_HOME%\bin;%M2_HOME%\bin;%MySQL_HOME%\bin;%CATALINA_HOME%\bin;%DERBY_HOME%\bin;%Python_HOME%;%Python_HOME%Scripts\;%msys2_HOME%;%MinGW_HOME%\bin;

+

C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\SecureCRT\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;

+（有向图无向图python库，graphviz是python二叉树的可视化图形软件）

D:\Program Files (x86)\graphviz-2.38\release\bin

更新（最终）：

%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;%JAVA_HOME%\bin;%JRE_HOME%\bin;%ANT_HOME%\bin;%M2_HOME%\bin;%MySQL_HOME%\bin;%CATALINA_HOME%\bin;%DERBY_HOME%\bin;%Python_HOME%;%Python_HOME%Scripts\;%msys2_HOME%;%MinGW_HOME%\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\SecureCRT\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;D:\Program Files (x86)\graphviz-2.38\release\bin;C:\Program Files\wkhtmltopdf\bin;D:\Program Files (x86)\texlive\2020\bin\win32;C:\Program Files (x86)\Tencent\WeiXinWebTools\dll;D:\Program Files (x86)\ffmpeg-master-latest-win64-gpl\bin;D:\Program Files (x86)\PlatformIO_Core\penv\Scripts;C:\Android;C:\Program Files\Git\cmd;D:\Program Files\CMake\bin;D:\xtensa-esp32-elf\bin

JAVA_HOME=C:\Java\jdk1.8.0_74
CLASSPATH=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;%JRE_HOME%\lib\javaws.jar;%CATALINA_HOME%\lib\servlet-api.jar;%CATALINA_HOME%\bin\bootstrap.jar;..;D:\TIJ4-code;%DERBY_HOME%\lib\derby.jar;%DERBY_HOME%\lib\derbytools.jar;%DERBY_HOME%\lib\derbynet.jar;%DERBY_HOME%\lib\derbyclient.jar
JAVA_OPTS= -Xms256m -Xmx1024m  // 注意第一个字符有空格
JRE_HOME=C:\Java\jre1.8.0_74
（未使用）RuntimeLib=C:\Java\jdk1.8.0_74\jre\bin\server\jvm.dll
M2_HOME=D:\Program Files\apache-maven-3.3.9
MAVEN_OPTS= -Xms128m -Xmx512m
DERBY_HOME=D:\Program Files\db-derby-10.12.1.1-bin
ANT_HOME=D:\program_files\OperaMasksStudio-7.1.1\eclipse\plugins\org.apache.ant_1.7.1.v20090120-1145
MinGW_HOME=D:\Program Files (x86)\MinGW
msys2_HOME=D:\EspIdf3.2\msys32
MySQL_HOME=D:\Program Files\mysql-8.0.15-winx64
CATELINA_HOME=D:\Program Files\apache-tomcat-8.0.32
Python_HOME=C:\Users\21\AppData\Local\Programs\Python\Python38\
让idf选择乐鑫的网址，编程指南3.2.2中需要下面的环境变量来运行idf
IDF_PATH=D:\esp\esp-idf
IDF_TOOLS_PATH=D:\Espressif
IDF_GITHUB_ASSETS=dl.espressif.com/github_assets
idf工具链设置4.3版
系统path+;D:\xtensa-esp32-elf\bin



安装了java解决freemind，python之后（加在前面第一句）
C:\Program Files (x86)\Common Files\Oracle\Java\javapath;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;%JAVA_HOME%\bin;%JRE_HOME%\bin;%ANT_HOME%\bin;%M2_HOME%\bin;%MySQL_HOME%\bin;%CATALINA_HOME%\bin;%DERBY_HOME%\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\SecureCRT\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;D:\Program Files (x86)\graphviz-2.38\release\bin

用户Path（曾经）
C:\Users\21\AppData\Local\Programs\Python\Python38\Scripts\;C:\Users\21\AppData\Local\Programs\Python\Python38\;C:\Users\21\AppData\Local\atom\bin;D:\Program Files (x86)\Atom\atom\bin

安装了MinGW之后(为了clion编译C++文件)
MinGW_HOME=D:\Program Files (x86)\MinGW


安装了网页转pdf的工具之后（python爬虫）
系统path+C:\Program Files\wkhtmltopdf

安装了atom的activate-power-mode之后
用户path+C:\Users\21\AppData\Local\atom\bin;D:\Program Files (x86)\Atom\atom\bin


安装了微信开发者工具之后
系统path+C:\Program Files (x86)\Tencent\WeiXinWebTools\dll

安装了ffmpeg之后
系统path+D:\Program Files (x86)\ffmpeg-master-latest-win64-gpl\bin

加入vscode后
用户path+C:\Users\21\AppData\Local\Programs\Microsoft VS Code\bin;
加入platformIO后
系统path+D:\Program Files (x86)\PlatformIO_Core\penv\Scripts
用户path追加：
PLATFORMIO_CORE_DIR=D:\Program Files (x86)\PlatformIO_Core

安装Anaconda3之后
用户path+;D:\ProgramData\Anaconda3;D:\ProgramData\Anaconda3\Scripts;D:\ProgramData\Anaconda3\Library\bin;D:\ProgramData\Anaconda3\Library\mingw-v64\bin

安装msys2，稚晖君的HoloCubic，之后系统的path，由于MinGW_HOME的修改，所以此处系统可以不用加入新的mingw64路径了。同时修改系统中变量MinGW_HOME

原来的D:\Program Files (x86)\MinGW

现在的​D:\Program Files (x86)\msys64\mingw64
​
​加入了git之后
系统path+;C:\Program Files\Git\cmd

安装了msys2之后
msys2_HOME=D:\Program Files (x86)\msys32\mingw32\bin

安装了Cmake之后
系统path+;D:\Program Files\CMake\bin

安装idf工具链
系统path+;D:\xtensa-esp32-elf\bin

安装了一加手机驱动程序
系统path+;C:\Android


用户变量最终：
C:\Users\21\AppData\Local\atom\bin;D:\Program Files (x86)\Atom\atom\bin;C:\Users\21\AppData\Local\Programs\Microsoft VS Code\bin;D:\ProgramData\Anaconda3;D:\ProgramData\Anaconda3\Scripts;D:\ProgramData\Anaconda3\Library\bin;C:\Program Files (x86)\Tencent\QQGameTempest\Hall.57915\

用户变量其他：
ANDROID_SDK_HOME=C:\Android
IDF_TOOLS_PATH=D:\Espressif
PLATFORMIO_CORE_DIR=D:\Program Files (x86)\PlatformIO_Core