C # drip-built-in Basic Types

The C # system namespace defines the basic types that can be used for local variables, member variables, parameters, and returned values. Corresponding keywords are matched in C.

Keywords	System Type	Range	Description
Bool	System. Boolean	True/false	Indicates logical truth or false
Sbyte	System. sbyte	-128 ~ 127	8-digit signed
Byte	System. byte	0 ~ 256	Unsigned 8-digit
Short	System. int16	-32768 ~ 32767	16-digit signed
Ushort	System. uint16	0 ~ 65535	Unsigned 16-digit
Int	System. int32	-2147483648 ~ 2147483647	32-digit signed
Uint	System. uint32	0 ~ 4294967295	Unsigned 32-digit
Long	System. int64	-9223372036854775808 ~ 9223372036854775807	Signed 64-digit
Ulong	System. uint64	0 ~ 18446744073709551615	Unsigned 64-digit
Char	System. Char		16-bit Unicode characters
Float	System. Single		32-Bit Single-precision floating point number
Double	System. Double		64-bit double-precision floating point number
Decimal	Decimal		128 characters
String	System. String		Indicates a combination of UNICODE character sets.
Object	System. Object		All types of base classes

 

In addition to string and object, the basic types are mostly struct, that is, the value type, and the memory is allocated to the stack.