转自：https://blog.csdn.net/weixin_39708822/article/details/111810521
firstDict = {"name": "wang yuan wai ", "age" : 25}
second_dict = dict.fromkeys(("name", "age")) #value使用默认的None,也可以指定value值
说明：fromkeys()是dict类的一个staticmethod(静态方法)
thirdDict = dict(name = "yuan wai", age = 30) #利用dict的构造方法 传入字典参数
tuple_list =[("name", "wang yuan wai"), ("age", 30)]
fifthDict = dict(zip("abc",[1,2,3]))
原文：https://www.cnblogs.com/BlueBlueSea/p/15234306.html