Python common modules-random number module

Python common modules-random number module

Yun Zhengjie

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I. Examples of common methods

1 #! /usr/bin/env python2 #_*_coding:utf-8_*_3 #@author: Yinzhengjie4 #blog:http://www.cnblogs.com/yinzhengjie/tag/python%e8%87%aa%e5%8a%a8%e5%8c%96%e8%bf%90%e7%bb%b4%e4%b9%8b% e8%b7%af/5 #Email:[email protected]6 7 ImportRandom8 Print(Random.random ())#value (0,1) float type. 9 Ten Print(Random.randint (1,3))#the int type that takes the value [1,3].  One  A Print(Random.randrange (1,3))#the int type of the value [1,3].  -  -names = ["Yinzhengjie","Yun Zhengjie","Yzj","Beijing","Xian"] the Print(Random.choice (names))#randomly takes a number from the given list.  -  - Print(Random.sample (names,3))#randomly takes 3 elements from a given list.  -  + Print(Random.uniform (1,3))#the float type of the value (1,3).  -  +Num_list = [1,2,3,4,5] ARandom.shuffle (Num_list)#to scramble the order of the list at Print(num_list) -  -  -  -  - #The result of the above code execution is as follows: in0.31234235002894484 -3 to2 + Yzj -['Beijing','Yun Zhengjie','Xian'] the1.3141763537753142 *[1, 3, 5, 2, 4]

Two. Verification Code case

1 #! /usr/bin/env python2 #_*_coding:utf-8_*_3 #@author: Yinzhengjie4 #blog:http://www.cnblogs.com/yinzhengjie/tag/python%e8%87%aa%e5%8a%a8%e5%8c%96%e8%bf%90%e7%bb%b4%e4%b9%8b% e8%b7%af/5 #Email:[email protected]6 7 ImportRandom8 9 defValdatecode (number=5):Tenres ="" One      forIinchRange (number): Anum = Random.randint (1, 9) -string = Chr (Random.randint (97,122)) -s =Random.choice ([str (num), string]) theRes + =s -     returnRes -  -res = Valdatecode (10) + Print(RES) -  +  A  at #The result of the above code execution is as follows: -43jh12l2i5

Python common modules-random number module