Python函数的返回值

Python函数的返回值 ​​一、前言​​ ​​二、返回值语法格式​​ ​​三、返回值语法实例​​ 一、前言 我们创建函数都只是为我们做一些事,做完了就结束。但实际上,有时还需要对事情的结果进行获取。这类似于主管向下级职员下达命令,职员去做,最后需要将结果报告给主管,为函数设置返回值的作用就是将函数的处理结果返回给调用它的程序。 二、返回值语法格式 在Python中,可以在函数体内使用return 语句为函数指定返回值。该返回值可以是任意类型,并且无论return语句出现在函数的什么位置,只要...

2022-05-14 | 51CTO | 468浏览

Python如何导入本地依赖包,手把手教学

1、解压python 解释器 Python如何导入本地依赖包,手把手教学 依赖包 627dee5033e1828400.png?x oss process=image/watermark,size 16,text QDUxQ1RP5Y2a5a6i,color FFFFFF,t 100,g se,x 10,y 10,shadow 90,type ZmFuZ3poZW5naGVpdGk= 2 在pycharm 中配置依赖包 第一步:在菜单栏选择“file”选项卡;在下拉菜单中选择“settin...

2022-05-14 | 51CTO | 151浏览

Python表白代码:“ 星光月夜烟花皆归你,我也归你”

导语 '慢品人间烟火色 闲观人间岁月长'                                                     ———致自己 Python表白代码:“ 星光月夜烟花皆归你,我也归你” python 627deaec1cf6530326.gif '图片'   Python表白代码:“ 星光月夜烟花皆归你,我也归你” 后端 02 627deaec43e2f14127.gif  ???? 林深时见鹿,海蓝时见鲸,梦醒时见你????。  星光月夜烟花皆归你,我...

2022-05-14 | 51CTO | 528浏览

Python的输出

Python的输出 ​​一、前言​​ ​​二、使用print 函数输出​​ 一、前言 数据的输入与输出操作,是计算机最基本的操作。本文我们只研究基本的输入与输出,基本输入是指从键盘上输入数据的操作,基本输出是指在屏幕上显示输出结果的操作。 常用的输入与输出设备有很多,如图所示:摄像机、扫描仪、话筒、键盘等都是输入设备,然后经过计算机解码后在显示器或打印机等终端进行输出显示。而基本的输入和输出是指我们平时从键盘上输入字符,然后在屏幕上显示。 Python的输出 python 627de3c0...

2022-05-14 | 51CTO | 975浏览

Write exception handling statements in Python

img https://img mid.csdnimg.cn/release/static/image/mid/ask/081372639156123.png?x oss process=image/auto orient,1/resize,w 320,m lfit import random n=int input ' Please enter the lower limit :' m=int input ' Please enter the upper limit :' num=rando...

2022-05-14 | CSDN Q & A | 759浏览

Pandas adds a column so that the data content is divided by the other two columns

Add a column of data The data content is the other two columns * See step 11 for details ( I keep reporting errors after operation I hope someone can tell me in detail that I don't know much about this ) img https://img mid.csdnimg.cn/release/...

2022-05-14 | CSDN Q & A | 956浏览

Learning problems in Python June

do not know why , When I started learning with the instructional video , It runs normally , It's not normal to open it today . img https://img mid.csdnimg.cn/release/static/image/mid/ask/448314639156158.jpg?x oss process=image/auto orient,1/resize,w...

2022-05-14 | CSDN Q & A | 776浏览

Python outputs any two positive integers a and B, calculates the number of prime numbers in the interval [a, b], and outputs the last prime number.

python Output any two positive integers a,b, Calculation interval 【a,b】 And output the last prime number . The problem of how to output the last prime number bothers me , I want to ask for your help . Take the answer : a = int input 'a:' b = int inp...

2022-05-14 | CSDN Q & A | 478浏览

How to change a for loop into a while loop in Python?

How to change the following code into while loop ? def maxnum lst : maxn = 0 for i in lst: if maxn i: maxn = i return maxn def minnum lst : minn = lst 0 for i in lst: if minn i: minn= i return minn a = 3,4,6,7 print maxnum a minnum a Take the answe...

2022-05-14 | CSDN Q & A | 182浏览

Interactive software, which seems to be related to python

Friends do interactive software She hasn't been exposed to programming , I won't It is said to be related to python Reptiles or something img https://img mid.csdnimg.cn/release/static/image/mid/ask/672078539156145.png?x oss process=image/auto o...

2022-05-14 | CSDN Q & A | 169浏览

Python uses while to cycle orders and count them in the list

s1mple = 'apple', 2.10 , 'milk', 4.50 , 'banana', 10.50 The order code is :(input) Enter order for apple: Enter order for milk: Enter order for Krusty: Put the above three input In the list, Such as 1,1,1, Application def, and menu by s1mple The...

2022-05-14 | CSDN Q & A | 517浏览

Python output

Python Output ​​ One 、 Preface ​​ ​​ Two 、 Use print Output function ​​ One 、 Preface Data input and output operation , Is the most basic operation of the computer . In this paper, we only study the basic input and output , Basic input refers t...

2022-05-14 | 51CTO | 981浏览

Python confession Code: "starlight, moonlit night, fireworks belong to you, and I belong to you"

Introduction ' Slow taste of human fireworks color It's a long time to watch the world '                                                     ——— To oneself Python Confession code :“ Starlight, moon and night fireworks belong to you , I belong ...

2022-05-14 | 51CTO | 829浏览

Return value of Python function

Python The return value of the function ​​ One 、 Preface ​​ ​​ Two 、 Return value syntax format ​​ ​​ 3、 ... and 、 Return value syntax instance ​​ One 、 Preface We create functions that just do something for us , When it's done, it's over . But ...

2022-05-14 | 51CTO | 297浏览

深度学习之python给图片批量命名

在做硕士课题的时候,因为课题图片种类比较多,而且各种图片的名称存在相同的,然后标注的时候生成的xml文件容易冲突,所以需要给图片重新命名一下,探索了几种命名方式,但是如果想让图片的名称都唯一,加上数据种类的名称显然是最理想的方式,因此我的批量命名的方式是获取文件夹名称后接数字。 如这里: https://img blog.csdnimg.cn/a51f2c71cbdf414b8b3778a7714271bd.png https://img blog.csdnimg.cn/5d881c78bc7...

2022-05-14 | 小馨馨的小翟 | 334浏览

Python how to import local dependency packages, hands-on teaching

1、 decompression python Interpreter Python How to import local dependent packages , Teaching by hand Dependency package 627dee5033e1828400.png?x oss process=image/watermark,size 16,text QDUxQ1RP5Y2a5a6i,color FFFFFF,t 100,g se,x 10,y 10,shado...

2022-05-14 | 51CTO | 767浏览

Python changes file storage location

The default file storage location of the program is C disc , I use os It's still not possible to change the position . May I ask you what to do ? Take the answer : What software do you want to change the default file storage location ? demand ...

2022-05-14 | CSDN Q & A | 608浏览

3 个不常见但非常实用的Pandas 使用技巧

在本文中,将演示一些不常见,但是却非常有用的 Pandas 函数。 创建一个示例 DataFrame 。 import numpy as np import pandas as pd df = pd.DataFrame { 'date': pd.date range start='2021 11 20', periods=100, freq='D' , 'class': 'A','B','C','D' / 25, 'amount': np.random.randint 10, 100, size...

2022-05-14 | deephub | 978浏览

Use Python to read in two columns of fitting lines from CSV files

background : It is necessary to judge whether the track tracked by the tracking algorithm is a straight line when the target is controlled to walk in a straight line , I saved the pixel position of the center point of the target tracked by the track...

2022-05-14 | CurrySerena | 805浏览

Executing Python script for vs2017 C + + Project

I solved even a small problem , I also want to write it down to witness my experience . background : One 、 Use libhuru Library generation pdf The report Recently participated in some testing work , It is hoped that after the test, the test repo...

2022-05-14 | CurrySerena | 157浏览