1.遍历双层列表中的元素
a = [[1,2], [3,4,5], [6,7,8,9]]
b = [j for i in a for j in i]
print(b)[1, 2, 3, 4, 5, 6, 7, 8, 9]2.求列表元素的平方
c = [x**2 for x in range(1, 10)]
print(c)[1, 4, 9, 16, 25, 36, 49, 64, 81]3.求列表中偶数的平方
d = [i**2 for i in range(1, 10) if i%2 == 0]
print(d)[4, 16, 36, 64]4.求双层列表中偶数的平方
e = [[1,2,3,4], [5,6,7], [8,9]]
f = [j**2 for i in e for j in i if j%2 == 0]
print(f)[4, 16, 36, 64]5.求列表长度大于1的偶数的平方
g = [[1,2,3], [4,5,6], [8], [9]]
h = [j**2 for i in g if len(i)>1 for j in i if j%2 == 0]
print(h)[4, 16, 36]6.将列表中的字分别填入字符串中
arr = [f'{i}只羊' for i in range(1, 101)]
print(arr)['1只羊', '2只羊', '3只羊', '4只羊', '5只羊', '6只羊', '7只羊', '8只羊', '9只羊',
'10只羊', '11只羊', '12只羊', '13只羊', '14只羊', '15只羊', '16只羊', '17只羊',
'18只羊', '19只羊', '20只羊', '21只羊', '22只羊', '23只羊', '24只羊', '25只羊',
'26只羊', '27只羊', '28只羊', '29只羊', '30只羊', '31只羊', '32只羊', '33只羊',
'34只羊', '35只羊', '36只羊', '37只羊', '38只羊', '39只羊', '40只羊', '41只羊',
'42只羊', '43只羊', '44只羊', '45只羊', '46只羊', '47只羊', '48只羊', '49只羊',
'50只羊', '51只羊', '52只羊', '53只羊', '54只羊', '55只羊', '56只羊', '57只羊',
'58只羊', '59只羊', '60只羊', '61只羊', '62只羊', '63只羊', '64只羊', '65只羊',
'66只羊', '67只羊', '68只羊', '69只羊', '70只羊', '71只羊', '72只羊', '73只羊',
'74只羊', '75只羊', '76只羊', '77只羊', '78只羊', '79只羊', '80只羊', '81只羊',
'82只羊', '83只羊', '84只羊', '85只羊', '86只羊', '87只羊', '88只羊', '89只羊',
'90只羊', '91只羊', '92只羊', '93只羊', '94只羊', '95只羊', '96只羊', '97只羊',
'98只羊', '99只羊', '100只羊']7.将字符串变成大写
m = ['python', '深度学习', 'tensorfow', 'pytorch']
n = [i.upper() for i in m if len(i) > 3]
print(n)['PYTHON', '深度学习', 'TENSORFOW', 'PYTORCH']8.打印s个数大于1的字符串
names = [['sfsdsd', 'yefdgds', 'sfsgfehg'], ['etgwf', 'sgsefe'], ['sdfsf']]
l = [j for i in names for j in i if j.count('s') > 1]
print(l)['sfsdsd', 'sfsgfehg', 'sgsefe', 'sdfsf']转载请注明来源，欢迎对文章中的引用来源进行考证，欢迎指出任何有错误或不够清晰的表达。可以在下面评论区评论，也可以邮件至 2621041184@qq.com