三元表达式和列表生成式

age = 18

 

if age<18:

v = '未成年人'

else:

v = '成年人'

 

v = '未成年人' if age < 18 else '成年人'  三元表达式 

 

a = [1,2,3,4,5,6]

b = []

for i in a:

b.append(str(i))

 

c = [ str(i) for i in a]   列表生成式一行代码搞定  

d = [ str(i) for i in a if i%2!=0 ]