014 乱序列表元素有哪些方式

1 . 编写一个函数（不要使用python模块的函数），打乱列表元素的顺序

import random

a = [1,2,3,4,5,6,7,8,9, 0]
def random_list1(a):
    for i in range(0, 100):
        index1 = random.randint(0, len(a) - 1)
        index2 = random.randint(0, len(a) - 1)
        a[index1], a[index2] = a[index2], a[index1]
    return a

b = random_list1(a)
print(b)

def random_list2(a):
    a_copy = a.copy()
    result = []
    count = len(a)
    for i in range(0, count):
        index = random.randint(0, len(a_copy) - 1)
        result.append(a_copy[index])
        del a_copy[index]
    return  result

a = [1,2,3,4,5,6,7,8,9,0]
b = random_list2(a)
print(b)

　　

 

2. 如何对列表元素进行随机排列

a = [1,2,3,4,5,6,7,8,9,0]
random.shuffle(a)
print(a)