Asymptote by Example is an Asymptote tutorial in Simplified Chinese by milksea at ctex.org. Asymptote 1.70 should be used to compile the example. The document is released under GPL. If you are interested in the process of development you may observe http://code.google.com/p/ctex-doc/updates/list Report feedback in the Issues section of ctex-doc project, or in http://bbs.ctex.org forum.