很有用个的工具
值得好好看看，这是作者（python发明者)对于工作中使用到的大多数场景的提炼
//test.py
1 import math
2
3 print abs(-10)
4 print math.ceil(4.1)
5 print cmp(1,2)
6 print math.exp(2)
7 print math.fabs(-10)
8 print math.log(math.e)
9 print math.log(100, 10)
10 print math.log10(100)
11 print max(1, 2)
12 print max((1, 2))
13 print max((1, 2), (3, 4))
14 print min(1,2)
15 print math.modf(-10.3456)
16 print math.pow(2, 2)
17 print round(1.4587604, 3)
18 print math.sqrt(4)
19
20 print math.acos(0.7)
21 print math.asin(0.7)
22 print math.atan(12)
23 print math.atan2(10, 3)
24 print math.hypot(2, 3)
25 print math.sin(30)
26 print math.tan(30)
27 print math.degrees(0.8)
28 print math.radians(90)
29 print math.radians(360)
30
31 import random
32
33 nums = (1, 2, 3, 4, 5)
34 print random.choice(nums)
35 print random.choice(range(100))
36 print random.randrange(100)
37 print random.randrange(0, 100, 3)
38 print random.random()
39 v_nums = list(nums)
40 random.shuffle(v_nums)
41 print v_nums
42 print random.uniform(10.3, 27.8)
//result
# python test.py
10
5.0
-1
7.38905609893
10.0
1.0
2.0
2.0
2
2
(3, 4)
1
(-0.34559999999999924, -10.0)
4.0
1.459
2.0
0.795398830184
0.775397496611
1.48765509491
1.27933953232
3.60555127546
-0.988031624093
-6.40533119665
45.8366236105
1.57079632679
6.28318530718
1
90
2
48
0.343898314122
[3, 2, 5, 1, 4]
13.7044793568
Finally:
需要时候，可以回来看一下这个例子，立马就能知道怎么用这些个函数了