The difference 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 it in multiple lines, then use ("hyphen"), 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 there are a lot of n's in your string and you don't want to use n in the string, then you can use 3 double

quotes. Moreover, you can 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. The difference between 3 double quotes and 1 single quote is also

and this Similarly, there is actually a reason why python supports single quotes. Let me compare the difference between 1 single quote and

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 ' in the string, and the character Strings are represented by ', so

needs to use escape characters at this time (you should know the escape characters). If your string has a lot of

escape characters, 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

in the string

Single quotation marks' are treated as ordinary characters. Isn't it very simple?

The same is true for double quotation marks. Here is an example

s6 = 'I really like "python"!'

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

.