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This article mainly introduces how to create and use strings in Python. It is very detailed and has certain reference value. Friends who are interested must finish reading it.

String creation

Strings are the most commonly used data type in Python. We can use quotation marks ('or ") to create a string.

Creating a string is as simple as assigning a value to a variable.

Single and double quotation marks

We all know in Python that both single and double quotes can be used to represent a string, such as

Print ("What's your name?") Result: study hard and print ("python" is an excellent language). Result: "python" is an excellent language. A single quote is not a single quote, it is a format for string creation.

Generally speaking, there is no difference, only in single quotation marks when ordinary characters are easy to distinguish: such as var= "let's go"

Three quotation marks create block string long string

# three quotes to implement block comments "" document comments three quotes to implement block comments ""

String formatting

Convert a non-character type into a string

In Python, you can use the print function to output information to the console.

If you want to output text information as well as data, you need to use the formatting operator

% is called the format operator and is used specifically to handle formatting in strings

Contains a string of%, which is called a formatted string

% is used with different characters, and different types of data need to use different formatting characters

The syntax format is as follows:

Print ("format string s" >

% s

Align output

F

Embed a variable in a string

Name = "hello" f'{name}'

Case: cat's Eye top100

The website of Maoyan top100 has the following features:

Please use the three string construction methods to create all the request addresses

Member operator

In and not in are called member operators

The member operator is used to test whether the specified member is included in the sequence

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