大家说说，为嘛要8GB的RAM。太不可思议了。原本还热情高涨想试试开发Android的。这硬件成本也太高了点吧。

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System requirements

Version 3.x

Criterion Description
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OS version Microsoft Windows 7/8/10 (32-bit or 64-bit), 64-bit required for native debugging
Mac OS X 10.10 (Yosemite) or higher, up to 10.13 (macOS High Sierra)
GNOME or KDE desktop Linux (64 bit capable of running 32-bit applications)
(GNU C Library (glibc) 2.19+)

RAM 3 GB RAM minimum, 8 GB RAM recommended; plus 1 GB for the Android Emulator
*我的机器免费有足够的RAM，4GB。现在的软件都超豪华。要求那么多的RAM。我要不要加点RAM?先试运行吧。实在不能忍受再加。

Disk space 2 GB of available disk space minimum,
4 GB recommended (500 MB for IDE + 1.5 GB for Android SDK and emulator system image)

Java version Java Development Kit (JDK) 8, use of bundled OpenJDK is recommended

Screen resolution 1280×800 minimum screen resolution

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System requirements
Windows

Microsoft® Windows® 7/8/10 (32- or 64-bit)
3GB RAM minimum, 8GB RAM recommended; plus 1GB for the Android Emulator
2GB of available disk space minimum,
4GB Recommended (500 MB for IDE + 1.5GB for Android SDK and emulator system image)
1280 x 800 minimum screen resolution