Python 的数据类型
Jason Myers
Instructor
.items() 方法返回可迭代的对象for gallery, phone_num in art_galleries.items():
print(gallery)
print(phone_num)
'Miakey Art Gallery'
'(718) 686-0788'
'Morning Star Gallery Ltd'
'(212) 334-9330'}
'New York Art Expo Inc'
'(212) 363-8280'
.get() 会做很多键检查工作in 运算符更高效且更清晰'11234' in art_galleries
False
if '10010' in art_galleries:
print('I found: %s' % art_galleries['10010'])
else:
print('No galleries found.')
I found: {'Nyabinghi Africian Gift Shop': '(212) 566-3336'}
Python 的数据类型