0
4
37
168
458
191
支持任意长度的四则运算:[img]http://thinke365.iteye.com/upload/picture/pic/34495/62eed6af-1ba3-358f-a330-ad253d81e0f5.jpg[/img]f()会释放之前绑定的变量 [img]http://thinke365.iteye.com/upload/picture/pic/34497/ab5a4a85-9587-...