区分元组，字典和lambda的用法_CDA答疑社区

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詹惠儿

2019-03-30 阅读量: 402

区分元组，字典和lambda的用法

使用元组，字典和lambda的直接方法

# Python program to demonstrate ternary operator

a, b = 10, 20

# Use tuple for selecting an item

print( (b, a) [a < b] )

# Use Dictionary for selecting an item

print({True: a, False: b} [a < b])

# lamda is more efficient than above two methods

# because in lambda we are assure that

# only one expression will be evaluated unlike in

# tuple and Dictionary

print((lambda: b, lambda: a)[a < b]())

输出：
10
10
10

85.7167

2

1

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