zip( ) 函数

 

•  zip( ) 的作用

 

b = ["red", "green", "blue"]
c = ["leopard", "cheetah", "jaguar"]

for x,y in zip(b,c):
    print(x, y)

输出：

red leopard
green cheetah
blue jaguar

• zip( ) 转list[]

b = ["red", "green", "blue"]
c = ["leopard", "cheetah", "jaguar"]

new_list = list(zip(b, c))

 

输出：

[('red', 'leopard'), ('green', 'cheetah'), ('blue', 'jaguar')]

--若想转元组，输出list索引即可
new_list[0]

输出：

('red', 'leopard')

　　

• zip( ) 转dict{ }

b = ["red", "green", "blue"]
f = ["strawberry", "kiwi", "blueberry"]

print(dict(zip(b, f)))

　输出：

{'red': 'strawberry', 'green': 'kiwi', 'blue': 'blueberry'}

• 解压列表

a = [1, 2, 3]
b = [4, 5, 6]
zipped = zip(a, b)
print(list(zipped))
a2, b2 = zip(*zip(a, b))

解压结果：
 [1, 2, 3]
 [4, 5, 6]

• zip( )与for 循环组合

m = ["mind", "mouse", "mini"]
n = ["norm", "night", "necklace"]

[print(a, b) for a, b in zip(m, n)]

输出：

mind norm
mouse night
mini necklace