Python 列表解析 字典解析

from random import randint



range_num = [ randint(-10,10) for _ in range(10) ]



number = [ i for i in range_num if i >= 0 ]



print(number)



# filter 函数

number = filter(lambda x : x >= 0 ,range_num)

print(list(number))



OR



number = list(filter(lambda x : x >= 0 ,range_num))

print(number)

from random import randint



range_num = { 'students-{}'.format(i):randint(50,100) for i in range(10) }

number = { k:v for k, v in range_num.items() if v >= 80 }

print(number)



#filte

number = filter(lambda x: x[1] >= 90 , range_num.items())

print(dict(number))

o



number = dict(filter(lambda x: x[1] >= 90 , range_num.items()))

print(number)