今天编辑告诉我,在网上可以买到这书了,购买链接是http://www.amazon.cn/Ext-JS-4-2%E5%AE%9E%E6%88%98-%E9%BB%84%E7%81%AF%E6%A1%A5/dp/B00J1YFJZM/ref=sr_1_1?ie=UTF8&qid=1395205737&sr=8-1&keywords=ext+js+4.2%E5%AE%9E%E6%88%98。