What is Squeak ?
Squeak is a modern, open source full-featured implementation of the powerful Smalltalk programming language and environment. Squeak is highly-portable - even its virtual machine is written entirely in Smalltalk making it easy to debug, analyze, and change. Squeak is the vehicle for a wide range of projects from multimedia applications, educational platforms to commercial web application development.
http://www.squeak.org/中文资料看这里:
http://liuxinyu95.googlepages.com/squeaklandSqueak,一个 Smalltalk 的平台,可以开发很多有趣的东西,主要用于 child-education。
虚拟机的实现如何做的,有意思,空闲时可以一读实现。
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