一行表达:if...else

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import os,re,random

a = random.randint(1,3)
f"随机产生的变量 a = {a}"

"a = 1" if a <2 else ( "a = 3" if a >2 else "a = 2" )

Output:
‘随机产生的变量 a = 1’

'a = 1'