from random import randint
from itertools import chain
#并行
Chinese = [randint(40,100) for x in range(10)]
Math = [randint(50,100) for x in range(10)]
English = [randint(60,100) for x in range(10)]
方法一:
total = []
for c,m,e in zip(Chinese,Math,English):
total.append(c + m + e)
print(total)
方法二:
[c + m + e for c,m,e in zip(chinese,math,english)]
#串行
In [123]: e1 = [randint(60,100) for x in range(40)]
In [124]: e2 = [randint(60,100) for x in range(42)]
In [125]: e3 = [randint(60,100) for x in range(42)]
In [126]: e4 = [randint(60,100) for x in range(39)]
方法一:
In [127]: count = 0
In [128]: for x in chain(e1,e2,e3,e4):
.....: if x >= 90:
.....: count += 1
.....:
In [129]: count
Out[129]: 48
方法二(推荐):
In [130]: len([x for x in chain(e1,e2,e3,e4) if x >= 90])
Out[130]: 48
方法三:
In [134]: len(list(filter(lambda x:x >= 90,chain(e1,e2,e3,e4))))
Out[134]: 48
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