Python global 关键字Python 关键字实例在函数内部声明一个全局变量，并在函数外部使用它：# 创建函数：def myfunction(): global x x = "hello"# 执行函数：myfunction()# x 现
Python from 关键字Python 关键字实例仅从 datetime 模块中导入时间部分，然后将时间打印为 15:00：from datetime import timex = time(hour=15)print(x)完整实例：from datetime
Python for 关键字Python 关键字实例打印 1 到 8 的每个数字：for x in range(1, 9): print(x)完整实例：for x in range(1, 9): print(x)定义和用法for 关键字用于创建 for
Python finally 关键字Python 关键字实例无论 try 块是否引发错误，都将始终执行 finally 块：try: x > 3except: print("Something went wrong")else: print("Nothing went
Python False 关键字Python 关键字实例打印比较 5 大于 6 的结果：print(5 > 6)完整实例：print(5 > 6)定义和用法False 关键字是布尔值，是比较运算的结果。False 关键字等同于 0
Python except 关键字Python 关键字实例如果语句引发错误，则打印 "Something went wrong"：try: x > 3except: print("Something went wrong")完整实例：# (x > 3) will raise
Python else 关键字Python 关键字实例如果 x 大于 5 则打印 "YES"，否则打印 "NO"：x = 3if x > 5: print("YES")else: print("NO")完整实例：x = 3if x > 5: print("YES")else
Python elif 关键字Python 关键字实例如果变量 i 是争执，则打印 "YES"，如果 i 是 0 则打印 "WHATEVER"，否则打印 "NO"：for i in range(-5, 5): if i > 0: print("YES") eli
Python del 关键字Python 关键字实例删除对象：class MyClass: name = "John"del myClassprint(myClass)完整实例：class MyClass: name = "Bill"del MyClassprint(MyClass)定
Python def 关键字Python 关键字实例创建并执行函数：def my_function(): print("Hello from a function")my_function()完整实例：def my_function(): print("Hello from a fu
Python continue 关键字Python 关键字实例如果变量 i 为 5，则跳过迭代，但继续进行下一个迭代：for i in range(9): if i == 5: continue print(i)完整实例：for i in range(9
Python class 关键字Python 关键字实例创建名为 "Person" 的类：class Person: name = "Bill" age = 63完整实例：class Person: name = "Bill" age = 63print(Person.name)
Python break 关键字Python 关键字实例如果 i 大于 5，则结束循环：for i in range(9): if i > 5: break print(i)完整实例：for i in range(9): if i > 5: break print
Python assert 关键字Python 关键字实例测试条件是否返回 True：x = "hello"# 如果条件返回True，则什么也不会发生：assert x == "hello"#如果条件返回 False，则会引发 AssertionE
Python as 关键字Python 关键字实例引用日历模块 c：import calendar as cprint(c.month_name[1])完整实例：import calendar as cprint(c.month_name[1])定义和用法as 关键字用
