Android Studio 的配置文件、插件、输出日志全都放在了c盘下的.androidstudio中，快占c盘2个G了
修改bin目录下的idea.properties文件，更改前面四句的配置
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE config folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
idea.config.path=D:/Applications/Android/.AndroidStudio2.2/config
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
idea.system.path=D:/Applications/Android/.AndroidStudio2.2/system
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to user installed plugins folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
idea.plugins.path=D:/Applications/Android/.AndroidStudio2.2/config/plugins
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE logs folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
idea.log.path=D:/Applications/Android/.AndroidStudio2.2/system/log
