1,列表推導式
#coding:utf8
x1 = [x for x in range (5)]
print(x1)
odd = [x for x in range(10) if x % 2 !=0]
print(odd)
運行結果爲:
2, 字典推導式
#coding:utf8
x1 = {n: n**2 for n in range(5)}
print(x1)
x2 = {v: k for k, v in x1.items()}
print (x2)
3, 集合推導式
集合推導式會幫我們去除重複的元素
#coding:utf8
x1 = {i**2 for i in [-1,-5,1,2,-2]}
print(x1)
運行結果: