在一个for循环里对多个列表进行迭代

Posted 2020-10-07 安迪_963

第一种情况是要对三个表同时进行迭代，第二种情况是依次对三个表进行迭代

#!/usr/bin/env python
#coding:utf-8
#@Author:Andy
# Date: 2017/6/11

from random import randint
# 3 lists
l1 = [randint(1,100) for _ in range(1,10)]
l2 = [randint(1,100) for _ in range(1, 10)]
l3 = [randint(1,100) for _ in range(1, 10)]

# 将三个表中的对应顺序的项相加，合并成一张表
res = []
# for a, b, c in zip(l1, l2, l3):
# 	total = a+b+c
# 	res.append(total)
[res.append(a+b+c) for a,b,c in zip(l1, l2, l3)]
print(res)

# 统计三个表中，大于60的数，
# 此时就需要对三个表依次迭代
# 虽然列表可以直接进行相加、拼接但不建议这样做
res1 = []
from itertools import chain
# for i in chain(l1, l2, l3):
# 	if i > 60:
# 		res1.append(i)

[res1.append(i) for i in chain(l1, l2, l3) if i > 60]
print(res1)