[n for n in [1,2,3,4] if n%2]try:
user.name
except AttributeError:
pass[1,2,4].sort()def compute_cubes():
return [n**3 for n in range(1000)]if var:
passif not names_list:
passdict(zip([‘a‘,‘b‘,‘c‘],[1,2,3]))原文：https://www.cnblogs.com/raisok/p/12659650.html