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What is the difference between literals and constants in C#?

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Sep 03, 2023 pm 01:17 PM

C# 中的文字和常量有什么区别？

Constant refers to a fixed value that cannot be changed during the execution of the program. These fixed values are also called literals. Constants can be of any basic data type, such as integer constants, floating-point constants, character constants, or string literals. There are also enumeration constants.

Integer literals can be decimal or hexadecimal constants. The prefix specifies the base: 0x or 0X for hexadecimal, no prefix for decimal.

150
300u

Floating point numerical quantities include integer part, decimal point, decimal part and exponent part.

3.14159
235468E-7F

String literals or constants are enclosed in double quotes "" or @"". Strings contain characters similar to character literals: ordinary characters, escape sequences, and universal characters.

@"Welcome User"
"Welcome User"

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