[C#]C++与C#数据类型总结

字符

char

1

sbyte

System.SByte

-128~127

字符(u)

unsigned char

1

byte

System.Byte

0~255

宽字符

wchar_t

2

char

System.Char

宽字符（无符号）

unsigned wchar_t

2

逻辑值

bool

1

bool

System.Boolean

true，false

短整数

short

2

short

System.Int16

-32,768 ~ 32,767

短整数(无符号）

unsigned short

2

ushort

System.UInt16

0~65535(2的16次方）

整数

int

4

int

System.Int32

-2,147,483,648 ~ 2,147,483,647

整数(无符号）

unsigned int

4

uint

System.UInt32

0 ~ 4,294,967,295

长整型

long

8

long

System.Int64

-9,223,372,036,854,775,808 ~ 9,223,372,036,854,775,807

L (最好用大写，因为小写l容易与1混淆）

长整型（无符号）

unsigned long

8

ulong

System.UInt64

0 ~ 18,446,744,073,709,551,615

单精度实数

float

4

float

System.Single

-3.402823e38 ~ 3.402823e38

双精度实数

double

8

double

System.Double

-1.79769313486232e308 ~ 1.79769313486232e308

d

长双精度实数

long double

10

decimal

System.Decimal

-79228162514264337593543950335 ~ 79228162514264337593543950335

m

字符串

string

string

System.String

对象

object

System.Object

HANDLE(void *)

System.IntPtr

Byte(unsigned char)

System.Byte

SHORT(short)

System.Int16

WORD(unsigned short)

System.UInt16

INT(int)

System.Int16

INT(int)

System.Int32

UINT(unsigned int)

System.UInt16

UINT(unsigned int)

System.UInt32

LONG(long)

System.Int32

ULONG(unsigned long)

System.UInt32

DWORD(unsigned long)

System.UInt32

DECIMAL

System.Decimal

BOOL(long)

System.Boolean

CHAR(char)

System.Char

LPSTR(char *)

System.String

LPWSTR(wchar_t *)

System.String

LPCSTR(const char *)

System.String

LPCWSTR(const wchar_t *)

System.String

PCAHR(char *)

System.String

BSTR

System.String

FLOAT(float)

System.Single

DOUBLE(double)

System.Double

VARIANT

System.Object

PBYTE(byte *)

System.Byte[]

BSTR

StringBuilder

LPCTSTR

StringBuilder

LPCTSTR

string

LPTSTR

[MarshalAs(UnmanagedType.LPTStr)] string

LPTSTR 输出变量名

StringBuilder 输出变量名

LPCWSTR

IntPtr

BOOL

bool

HMODULE

IntPtr

HINSTANCE

IntPtr

结构体

public struct 结构体{};

结构体 **变量名

out 变量名 //C#中提前申明一个结构体实例化后的变量名

结构体 &变量名

ref 结构体 变量名

WORD

ushort

DWORD

uint

DWORD

int

UCHAR

int

UCHAR

byte

UCHAR*

string

UCHAR*

IntPtr

GUID

Guid

Handle

IntPtr

HWND

IntPtr

DWORD

int

COLORREF

uint

unsigned char

byte

unsigned char *

ref byte

unsigned char *

[MarshalAs(UnmanagedType.LPArray)] byte[]

unsigned char *

[MarshalAs(UnmanagedType.LPArray)] Intptr

unsigned char &

ref byte

unsigned char 变量名

byte 变量名

unsigned short 变量名

ushort 变量名

unsigned int 变量名

uint 变量名

unsigned long 变量名

ulong 变量名

char 变量名

byte 变量名 //C++中一个字符用一个字节表示,C#中一个字符用两个字节表示

char 数组名[数组大小]

MarshalAs(UnmanagedType.ByValTStr, SizeConst = 数组大小)] public string 数组名; ushort

char *

string //传入参数

char *

StringBuilder//传出参数

char *变量名

ref string 变量名

char *输入变量名

string 输入变量名

char *输出变量名

[MarshalAs(UnmanagedType.LPStr)] StringBuilder 输出变量名

char **

string

char **变量名

ref string 变量名

const char *

string

char[]

string

char 变量名[数组大小]

[MarshalAs(UnmanagedType.ByValTStr,SizeConst=数组大小)] public string 变量名

struct 结构体名 *变量名

ref 结构体名 变量名

委托 变量名

委托 变量名

int

int

int

ref int

int &

ref int

int *

ref int //C#中调用前需定义int 变量名 = 0;

*int

IntPtr

int32 PIPTR *

int32[]

float PIPTR *

float[]

double** 数组名

ref double 数组名

double*[] 数组名

ref double 数组名

long

int

ulong

int

UINT8 *

ref byte //C#中调用前需定义byte 变量名 = new byte();

handle

IntPtr

hwnd

IntPtr

void *

IntPtr

void * user_obj_param

IntPtr user_obj_param

void * 对象名称

([MarshalAs(UnmanagedType.AsAny)]Object 对象名称

char, INT8, SBYTE, CHAR

System.SByte

short, short int, INT16, SHORT

System.Int16

int, long, long int, INT32, LONG32, BOOL , INT

System.Int32

__int64, INT64, LONGLONG

System.Int64

unsigned char, UINT8, UCHAR , BYTE

System.Byte

unsigned short, UINT16, USHORT, WORD, ATOM, WCHAR , __wchar_t

System.UInt16

unsigned, unsigned int, UINT32, ULONG32, DWORD32, ULONG, DWORD, UINT

System.UInt32

unsigned __int64, UINT64, DWORDLONG, ULONGLONG

System.UInt64

float, FLOAT

System.Single

double, long double, DOUBLE

System.Double