how to print name

Introduction to Unix awk commands The most basic function of the awk language is to browse and extract information based on specified rules in a file or string. Only after awk extracts information can other text operations be performed, A complete

Python first day, python first day In the python environment, we will use 3. for Versions later than Version x, the official saying that versions above python3.x will be the language needed in the future. The Transitional versions 2.6 and 2.7 will

Python object-oriented, python object-orientedPython object-oriented Python has been an object-oriented language since its design. As a result, it is easy to create a class and object in Python. This section describes Python Object-Oriented

FunctionThe function is to encapsulate the code of some payload, call it directly when needed, reuse it to improve efficiency and simplify the structure of the program.1. SyntaxDefine a function to use the DEF statement, write down the function

This week's content1. Basic syntax and characteristics of functions2. Parameters and Local variables3. Return value4. Recursive functions5. Anonymous functions6. Introduction to Functional programming7. Higher-order functions8. Built-in functions----

Don't want to be a lamb to be slaughtered!!!! To become strong ....The definition and use of functions in the front or for a reason, now the language tends to general, basic types are basically those, focus on the use of learning objects, and the

first, the function1. It is straightforward to put together a set of code, you can implement a function, you need to use this function, call this function directly.2. Function, method is one thing3. The format for defining a function is: def+

Object-Oriented ProgrammingObject-oriented programming is a programmatic approach that requires the use of "classes" and "objects" to implement:A class is a template, a template can contain multiple functions, function to implement some functions,

One, the file operationf =open("file.txt",‘r‘) print(len(f.read()))     #文件总长度 print(f.tell())          #读完文件，文件指针位置f.seek(0,0)              #偏移回文件头 print(f.readline())      #打印出文件中一行（第一行） printf.tell()           #显示文件指针现在的位置 f.seek(2,1)             

conditions, loops, and other statementsUse of ImportThe standard syntax for import is:Import module1[,module2[,... Modulen]]Indicates that an import is allowed to import multiple modules, but each module needs to be separated by commas.When the

Meta-groupTuples differ from lists in that the list of tuples cannot be modified.The method of creating tuples is relatively simple to use, separating some values and creating tuples.For example:A=1,2,3print (a)C:\python\python.exe

The programming method is about three kinds of1. Object-oriented2. Process oriented3. Functional programmingThese three kinds of programming methods have their own characteristicsObject-Oriented classes classProcess-oriented DefFunction-type

1. Parameter Sep: Sets the string between output character production. The default is a space1 name='tomwenxing'2 age='3 job='student'4print(name,age,job)5 Print (name,age,job,sep='-')2. Parameter end: sets the string at the end of the output text.

1. FunctionsDefinition: A function that encapsulates a set of statements by a name (function name), and to execute the function, simply call the name of its functionsCharacteristics: Reduce duplicate code To make the program extensible

Python's annotation function: https://www.cnblogs.com/PythonInMyLife/p/6918909.htmlIn script mode, when you want to comment on a line, you can first click the line code, and then Alt+3 (here 3 is not the numeric keypad 3, but the Ribbon 3, which has

Python a.py directly invokes the Python interpreter execution fileCHOMD +x a.py./a.py #修改a. py file properties, for executable, in use./execute a.py File2, briefly describe the relationship between bits and bytes1bytes=8bit, 2**8=256, can represent

Start by creating a new project that contains the main program Cards_main and the tool library Cards_tools:As follows:Main function mainly uses while and if to implement 4 function switching, the specific operation of the switch is performed by the

As an abstract way of computer code, functions play a very important role in Python. Today we introduce the definition of Python functions, the introduction of parameters, and how to invoke them. Where the function parameters are passed in in this

First, define the functiondef function name (argument list): function bodydef function (): PassSecond, formal parameters/actual parametersX, y is the parameter, the memory unit is allocated only when it is called, and the allocated memory

What is an iterator? It is a stateful object that returns the next value in the container when you invoke the next() method, and any object that implements the __iter__ and __next__() (implemented in Python2 next() ) method is an iterator that