4行代码(170个字符)计算10000以内的阶乘 http://topic.youkuaiyun.com/u/20081107/12/bbe2be15-2a95-48ef-80db-21cd756ee7c9.html?2095168368 http://topic.youkuaiyun.com/u/20090411/19/325eff86-7877-4ce8-93fc-e3d470b89995.html