python - 在 Python 中重构长语句

Question

我有一个很长的条件语句来决定对一对变量 a 和 b 采取什么行动。

action = 0 if (a==0) else 1 if (a>1 and b==1) else 2 if (a==1 and b>1) else 3 if (a>1 and b>1) else -1

虽然这句话的紧凑性(行；))很好，但它必须存在更优雅的方式来做到这一点吗？

Answer 1

if a==0:
   action = 0
elif a>1 and b==1:
   action = 1
elif a==1 and b>1:
   action = 2
elif a>1 and b>1:
   action = 3
else:
   action = -1

来自Zen of Python (节选):

Simple is better than complex.
Flat is better than nested.
Readability counts.