默认IntelliJ IDEA产生在C盘文件 的位置
IDEA 修改配置文件的位置：
你安装软件bin的同级目录下：
eg:
# Use ${idea.home.path} macro to specify location relative to IDE installation home.
# Use ${xxx} where xxx is any Java property (including defined in previous lines of this file) to refer to its value.
# Note for Windows users: please make sure you're using forward slashes (e.g. c:/idea/system).
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE config folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
idea.config.path=${user.home}/.IdeaIC/config
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
idea.system.path=${user.home}/.IdeaIC/system
Configuration directory
Syntax
%APPDATA%\JetBrains<product><version>
Example
C:\Users\JohnS\AppData\Roaming\JetBrains\IntelliJIdea2022.1
您可以使用IDEA .config.path属性更改IntelliJ IDEA配置目录的位置。
System directory
Syntax
%LOCALAPPDATA%\JetBrains<product><version>
Example
C:\Users\JohnS\AppData\Local\JetBrains\IntelliJIdea2022.1
您可以使用IDEA .system.path属性更改IntelliJ IDEA系统目录的位置。
一般这个目录文件比较大，所以修改这个文件则可以
修改后：
这样就可以把原来默认目录下的文件删除掉，减少C盘的空间
具体请查看官网文档：
