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【Python 语言基础】对象持久化的小例子
返回： Python基础 索引页 以下是一个在 python 语言中进行持久化的小例子。 下面的程序，通过利用 shelve，生成一个名称为 spam.db 的文件。在其中存储数组 db。通过执行 db['eggs'] = 语句，在给这个数组的第一个元素执行下标为 'eggs'，这里，我们存储了一个字符串： 'some eggs'。 impoPython 3函数的参数冒号注释
Python 3.7版本，函数的参数可以通过冒号来进行注释 def f(ham: str, eggs: str = 'eggs') -> str : print("Annotations:", f.__annotations__) print("Arguments:", ham, eggs) return ham + ' and ' + eggs str 这里都表示注释，而不是强制确定的类型（Array
Arrays: ordered collections of values List of comments on IG post Collection of levels in a game songs in a playlist Creating Arrays let students = []; //empty array let colors = ['red', 'orange', 'yellow']; // stringsB. Painting Eggs
链接：https://codeforces.com/contest/282/problem/B The Bitlandians are quite weird people. They have very peculiar customs. As is customary, Uncle J. wants to have n eggs painted for Bitruz (an ancient Bitland festival). He has asked G. and A. to do the wo异步与多线程
An analogy usually helps. You are cooking in a restaurant. An order comes in for eggs and toast. Synchronous: you cook the eggs, then you cook the toast. Asynchronous, single threaded: you start the eggs cooking and set a timer. You start the toast co函数(function)
(一)函数的定义 1 def hello():2 print("Hoddy!")3 print("Hoddy!!")4 hello()5 hello() View Code 输出结果： Hoddy!Hoddy!！Hoddy!Hoddy!！ View Code (二)带有参数的函数 1 def hello(name):2 print("Hello " + name)3 hello('sara