golang escape quotes

In Go language (Golang), strings are surrounded by double quotation marks ". But when quotation marks need to be used inside the string, the quotation marks need to be escaped.

The escape character is composed of the backslash character ( ). In a string, an escape character will be interpreted as a single character.

For example, to include a double quote character in a string, we use the "" escape character:

str := "这是一个"双引号"字符"

This will set the string str to "This is a "double quote" character".

If we want to include the backslash character () in the string, we also need Use escape characters:

str := "这是一个反斜杠字符\"

This will set the string str to "This is a backslash character".

Similarly, we can also include single quotes in the string :

str := "这是一个单引号字符'"

This will set the string str to "This is a single quote character'".

In the Go language, there are some other escape characters, as shown in the following table Display:

Escape character	Description

   | 换行         |

| | Enter|
| | Tab|
| | Backspace|
| | Page feed|
| | Vertical tab character |
| \ | backslash character |
| ddd | octal character |
| xhh | hexadecimal character |

For example, to include a newline in a string symbol, we can use the
escape character:

str := "第一行
第二行
第三行"

This will set the string str to:

第一行
第二行
第三行

It should be noted that in the Go language, use backslashes characters can make your code cluttered and difficult to understand. If your string contains multiple quote characters, backslash characters, or other escape characters, you can use raw string literals to avoid these problems.

Use Raw string literals are written by adding a " " character before the double quote character, or by enclosing the string content between two " " characters.

For example, using raw characters String literals can more easily represent a regular expression string:

pattern := `^[a-zA-Z0-9_]*$`

This will set the variable pattern to the string "^[a-zA-Z0-9_]*$" without Use escape characters.

In short, escape characters in Go language can help us include quotes, backslashes and other special characters in strings. However, care needs to be taken when using it to avoid the code becoming cluttered and difficult to understand. Using raw string literals is a better choice and can make the code more concise and clear.

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