Shulou(Shulou.com)06/02 Report--

This article mainly introduces how to use strings in Python. The introduction in the article is very detailed and has certain reference value. Interested friends must read it!

Using single quotes (') You can use single quotes to indicate strings, as in 'Quote me on this.' All white space, that is, spaces and tabs, is left intact.

Strings enclosed in double quotes (") are used exactly the same as strings enclosed in single quotes, e.g."What's your name?" "。

Using triple quotes (''or "") With triple quotes, you can indicate a multi-line string. You are free to use single quotes and double quotes around triple quotes. For example:

'''This is a multi-line string. This is the first line.

This is the second line.

"What's your name?, " I asked.

He said "Bond, James Bond. "

'''

escape character

Suppose you want to include a single quote (') in a string, how do you indicate the string? For example, this string is What's your name?. 'What's your name? 'because Python won't understand where this string starts and ends. So, you need to specify the single quote instead of the end of the string. This can be accomplished by escape characters. You use/'to indicate single quotes--notice the backslash. Now you can represent the string as 'What/'s your name?' '。

Another way to express this particular string is "What's your name? "Use double quotes. Similarly, escape characters can be used to use double quotes themselves in double quote strings. Alternatively, you can use the escape character//to indicate the backslash itself.

One thing worth noting is that in a string, a single backslash at the end of a line indicates that the string continues on the next line, rather than starting a new line. For example:

"This is the first sentence./

This is the second sentence. "

Equivalent to "This is the first sentence. This is the second sentence. "

natural string

If you want to indicate some string that doesn't need special processing like escape characters, you need to specify a natural string. Natural strings are specified by prefixing the string with r or R. For example, r"Newlines are indicated by /n".

Unicode string

Unicode is the standard way of writing international texts. If you want to write text in your native language, such as Hindi or Arabic, then you need an editor that supports Unicode. Similarly, Python allows you to work with Unicode text-you just need to prefix the string with u or U. u"This is a Unicode string. "。

Remember to use Unicode strings when working with text files, especially if you know that the file contains text written in a language other than English.

Python list connotation in practice use introduction

Python variable usage details explained

Specific application solutions for Python capture

Python string types in detail

Python list and C#similarity introduction

strings are immutable

This means that once you create a string, you can't change it anymore. Although this may seem like a bad thing, it is not. We'll see later in the program why we say it's not a flaw.

hyphenated string literal

If you place two strings literally next to each other, they are automatically concatenated by Python. For example,'What/'s'your name? "What's your name? "。

Comments for C/C++ programmers

There is no special char data type in Python. There really isn't a need to have this type, and I'm sure you won't be bothered by it.

Remember, single quote and double quote strings are exactly the same--they don't differ in any way.

Comments for regular expression users

Be sure to process regular expressions with natural strings. Otherwise you'll need a lot of backslashes. For example, backward references can be written as '//1' or r'/1'.

The above is "How to use strings in Python" all the content of this article, thank you for reading! Hope to share the content to help everyone, more relevant knowledge, welcome to pay attention to the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.