The meaning of single quotes in c language

Single quotes are used to represent character constants, as a delimiter for a single character value constant or a string constant (strings are represented by double quotes). The syntax is 'character', where character is the character to be represented. For example: char letter = 'a';.

Single quotation marks in C language

Single quotation marks represent character constants in C language.

Use:

• Specify a single character as a constant value.
• is used as the delimiter for string constants (strings are represented by double quotes).

Syntax:

<code>'character'</code>

Among them, character is the character to be represented.

Example:

char letter = 'a';
char escape_sequence = '\n'; // 换行符

Note:

##Single quotes can only contain a single character.
• Character constants are immutable, that is, their values ​​cannot be modified once they are defined.
• The C language uses the ANSI character set and therefore can contain all ASCII characters as well as some extended characters.

Additional explanation:

In C language, there are other types of constants, including:

Integer constants ( For example: 10, -5)
• Floating point constant (for example: 3.14, -6.02e23)
• String constant (for example: "Hello world")
• Boolean constant (For example: true, false)

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