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What is the difference between single quotes and double quotes in python? Let me give you a detailed introduction:
Let’s first talk about the difference between double quotes and triple 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."""
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Then s3 is actually The above is "hello,\nworld,\nhahaha.", pay attention to "\n", so if your string has a lot of \n and you don't want to use \n in the string, then you can use 3 double characters quotation marks. Moreover, you can also add comments to the string by using 3 double quotes, as follows:
s3 = """hello, #hoho, this is hello, 在3个双引号的字符串内可以有注释哦 world, #hoho, this is world hahaha."""
This is the difference between 3 double quotes and 1 double quote to express a string. 3 double quotes and The difference between one single quote and
is the same. In fact, there is a reason why Python supports single quotes. Let me compare the difference between one 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 string It is represented by ' again, so at this time you need to use the escape character \ (\, you should know the escape character). If there are a lot of escape characters in your string, it will definitely look uncomfortable, and Python will also This problem is solved 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 quote ' in the string , treated as ordinary characters, is it very simple? The same is true for double quotes. Here is an example:
s6 = 'I realy like "python"!'
This is why both single quotes and double quotes can represent strings Yes.
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