Python：模块与数学类函数（Math）
代码：
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[root@mysql-me ~]# python Python 2.6.6 (r266:84292, Jul 23 2015, 15:22:56) [GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> >>> 2**3 8 >>> >>> pow(2,3) 8 >>> >>> abs(-293) 293 >>> abs(1/2) 0 >>> abs(1/2.0) 0.5 >>> >>> round(1/2) 0.0 >>> >>> round(1/2.0) 1.0 >>> >>> import math >>> >>> math.floor(1/2.0) 0.0 >>> math.floor(34.3) 34.0 >>> math.floor(34.5) 34.0 >>> >>> >>> math.ceil(34.4) 35.0 >>> math.ceil(34.5) 35.0 >>> >>> >>> ce=math.ceil >>> ce(34.4) 35.0 >>> ce(34.5) 35.0 >>> >>> exit() [root@mysql-me ~]# |
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Done。[……]
