First chapter C # data types

1 Value types

1.1 Integer type

SByte signed 8-bit integer

BYTE unsigned 8-bit integer

Short signed 16-bit integer

ushort unsigned 16-bit integer

Int signed 32-bit integer

UINT unsigned 32-bit integer

A long signed 64-bit integer

ULONG unsigned 64-bit integer

1.2 Character types

Includes single letters, numbers, punctuation, other control characters

Represents a character in single quotation marks, or a string (string) type if it is a double quote

Char x= ' a ';

Char a= ' in ';

Escape character

\ ' Single quotation mark

\ "Double quotation marks

\ \ Slash

Space-out character

\a Exclamation Sign

\b Backspace

\f Page Change

\ nthe line break

\ r Enter

\ t Horizontal tab

\v Vertical Tab

1.3 Real Type

Float 32-bit single-precision real number

Double 64-bit dual-precision real number

Decimal 128 Digit real number

1.4 BOOL Type

Ture false

First chapter C # data types