Example: Python Function Call defgreet():print('Hello World!')# call the functiongreet()print('Outside function') Run Code Output Hello World! Outside function In the above example, we have created a function n
Something is happening before the function is called. Hello! Something is happening after the function is called.1.2 装饰器的语法糖 @ Python中的@符号是装饰器的语法糖 ,它使得应用装饰器变得简洁直观。上面的@simple_decorator就相当于say_hello = simple_decorator(say_hello),但更加易读且减少了代码量。
my_ip = "127.0.0.1" # 定义一个全局变量 def function(): global my_ip # 通过global关键字声明要修改全局变量 my_ip = "192.168.0.1" # 修改全局变量的值 print(my_ip) # 打印修改后的值,此时会输出新值 "192.168.0.1" function() print(my_ip) # 在函数外再次打印全局变量,也会输出 "192.168.0...
def my_function(): """Original function docstring""" print("Original Function") print(my_function.__name__) # 输出:"my_function" print(my_function.__doc__) # 输出:"Original function docstring"4.2 类装饰器与方法装饰器4.2.1 类装饰器的定义与使用 类装饰器可以用来装饰整个类,而非单个函数。
"simple function" pass print(f1.__doc__) simple function 下列Python代码段的输出结果是【 】 def aFun(): "The quick brown fox" return 1 print(aFun.__doc__[4:9]) quick 12、def area(width, height): return width * height def print_welcome(name): ...
A simple example MATLAB function is shown below:Matlab 1function [total] = addition(num_1,num_2) 2total = num_1 + num_2; 3end In this code, you see the function definition on line 1. There is only one output variable, called total, for this function. The name of the function ...
主要章节和小节重新按照如下逻辑划分: 一、Python基础 1 数字 2 字符串 3 列表 4 流程控制 5 编程风格 6 函数 7 输入和输出 8 数据结构 9 模块 10 错误和异常 11 类和对象 二、Python模块 1 时间模块 2 文件操作 3 常见迭代器 4 yield 用法 5 装饰
A function can include required and optional arguments, or no arguments at all. Return the output of a function using the return statement. Time You can use the Code Block parameter to call Python modules and methods. The example below calls the time module's ctime method. In...
Installspyenvinto the current shell as a shell function.This bit is also optional, but allows pyenv and plugins to change variables in your current shell. This is required for some commands likepyenv shellto work. The sh dispatcher doesn't do anything crazy like overridecdor hack your shell...
Example:if kids had 3 doughnuts, they would set number_of_doughnuts equal to 3, like so: number_of_doughnuts = 3 Assigning this value of “3” to the variable is called initializing. Printing Variables For kids to be able to see the value of their variable when they run their program,...