标签:span end name pre key 使用 div class 赋值
1. dict函数
dict函数时python内置创建字典的函数,用法如下:
person1 = [‘Tom‘, ‘10‘] person2 = [‘Lily‘, ‘11‘] dict1 = dict([person1, person2]) print(dict1) # {‘Tom‘: ‘10‘, ‘Lily‘: ‘11‘}
还有另一种直接使用赋值的用法:
dict1 = dict(tom = 10, lily = 11) print(dict1) # {‘tom‘: 10, ‘lily‘: 11}
2. 使用fromkeys函数:
fromkeys函数在确定键的情况下可以帮助快速创建初始字典
比如:
keys = [‘name‘, ‘age‘, ‘gender‘, ‘contact.info‘] dict1 = {}.fromkeys(keys, None) print(dict1) # {‘name‘: None, ‘age‘: None, ‘gender‘: None, ‘contact.info‘: None}
标签:span end name pre key 使用 div class 赋值
原文地址:https://www.cnblogs.com/cutomorrowsmile/p/13398024.html