The difference between single quotes, double quotes, and three quotes in Python

Say the difference between 1 double quotes and 3 double quotes, and the string represented by double quotes is usually written as a line
Such as:
S1 = "Hello,world"
If you want to write multiple lines, then use \ ("line character"),

s2 = "hello,\
World"
S2 is the same as S1. If you use 3 double quotation marks, you can write directly, as follows:
S3 = "" Hello,
World,
hahaha. ""

So S3 is actually "Hello,\nworld,\nhahaha.", note "\ n", so if you have a lot of strings in your string and you don't want to use \ n in a string, then you have 3 double quotes. and use 3 double quotes to add comments to the string.

As follows:

world,           #hoho, this is world
hahaha. ""
This is the difference between 3 double quotation marks and 1 double quotation marks, the difference between 3 double quotes and 1 single quotes is the same as this, and actually Python supports single quotes for a reason, so let me compare 1 single quotes with 1 double quotes.

When I use single quotation marks to represent a string, if I want to represent let's go this string, it must:
S4 = ' let\ ' Go '

Note that there is a ' in the string, and the string is used ' to represent, so this time to use the escape character \ (\, the escape character should know it), if your string has a large list of escape characters, it seems certainly uncomfortable, Python is also a good solution to the problem, as follows:
S5 = "Let ' s Go"
At this point, we see that Python knows that you are using "to represent strings,

So Python just treats the single quote in the string as a normal character, isn't it simple.

The same is true for double quotes, and here's an example
S6 = ' I realy like ' python '! '
This is why both single and double quotation marks can represent strings.

In fact, in specific applications, there are many other special applications of quotation marks. Take a look at the following example:

A: A document description string used as a function

def functionname (params):

"Instructions for use, etc."

function contents

Return

If it is a document description string for a multi-line representation of a function, it is appropriate to use the following expression:

def functionname (params):

"" Use

Description

Wait a minute

"""

function contents

Return

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The difference between single quotes, double quotes, and three quotes in Python