Detailed explanation of the differences between single quotes, double quotes, and multiple quotes in python

Let’s first talk about the difference between 1 double quote and 3 double quotes. The string represented by double quotes is usually written in one line

For example:

s1 = " hello,world"

If you want to write multiple lines, then use \ ("line character"), such as

s2 = "hello,\

world "

s2 is the same as s1. If you use 3 double quotes, you can write it directly, as follows:

s3 = """hello,

world,

hahaha.""", Then s3 is actually "hello,\nworld,\nhahaha.", pay attention to "\n", so,

If you have a lot of \n in your string, you don't want to use \n in the string If so, you can use 3 double

quotes. Moreover, you can also add comments to the string by using 3 double quotes, as follows:

s3 = """hello, #hoho, this is hello, you can have comments within the string of 3 double quotes.

world,             #hoho, this is world  

hahaha."""

This is the difference between 3 double quotes and 1 double quote to represent a string, 3 The difference between a double quote and a single quote

is the same as this. In fact, python supports single quotes for a reason. Let me compare a single quote and

The difference between 1 double quote.

When I use single quotes to represent a string, if I want to represent the string Let's go, it must be like this:

s4 = 'Let\ 's go', note that there is no one, there is a ' in the string, and the string is represented by ', so

At this time, escape character \ (\, You should know the escape characters), if there are a lot of

escape characters in your string, it will definitely look uncomfortable. Python also solves this problem very well, as follows:

s5 = "Let's go"

At this time, we see that python knows that you use " to represent a string, so python puts the

single quotes' in the string , treated as ordinary characters, is it very simple?

The same is true for double quotes. Here is an example

s6 = 'I really like "python"!'

This is why both single quotes and double quotes can represent strings.

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