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VB、C++、C#、JS 变量类型对照表
作者:JiaJia 日期:2007-10-01
| Category | Class name | Description | Visual Basic data type | C# data type | Managed Extensions for C++ data type | JScript data type |
|---|---|---|---|---|---|---|
| Integer | Byte | An 8-bit unsigned integer. | Byte | byte | char | Byte |
| SByte | An 8-bit signed integer.
Not CLS-compliant. |
SByte
No built-in type. |
sbyte | signed char | SByte | |
| Int16 | A 16-bit signed integer. | Short | short | short | short | |
| Int32 | A 32-bit signed integer. | Integer | int | int
-or- long |
int | |
| Int64 | A 64-bit signed integer. | Long | long | __int64 | long | |
| UInt16 | A 16-bit unsigned integer.
Not CLS-compliant. |
UInt16
No built-in type. |
ushort | unsigned short | UInt16 | |
| UInt32 | A 32-bit unsigned integer.
Not CLS-compliant. |
UInt32
No built-in type. |
uint | unsigned int
-or- unsigned long |
UInt32 | |
| UInt64 | A 64-bit unsigned integer.
Not CLS-compliant. |
UInt64
No built-in type. |
ulong | unsigned __int64 | UInt64 | |
| Floating point | Single | A single-precision (32-bit) floating-point number. | Single | float | float | float |
| Double | A double-precision (64-bit) floating-point number. | Double | double | double | double | |
| Logical | Boolean | A Boolean value (true or false). | Boolean | bool | bool | bool |
| Other | Char | A Unicode (16-bit) character. | Char | char | wchar_t | char |
| Decimal | A 96-bit decimal value. | Decimal | decimal | Decimal | Decimal | |
| IntPtr | A signed integer whose size depends on the underlying platform (a 32-bit value on a 32-bit platform and a 64-bit value on a 64-bit platform). | IntPtr
No built-in type. |
IntPtr
No built-in type. |
IntPtr
No built-in type. |
IntPtr | |
| UIntPtr | An unsigned integer whose size depends on the underlying platform (a 32- bit value on a 32-bit platform and a 64-bit value on a 64-bit platform).
Not CLS-compliant. |
UIntPtr
No built-in type. |
UIntPtr
No built-in type. |
UIntPtr
No built-in type. |
UIntPtr | |
| Class objects | Object | The root of the object hierarchy. | Object | object | Object* | Object |
| String | An immutable, fixed-length string of Unicode characters. | String | string | String* | String |
貌似这列是VB.NET,我补充一下VC++到VB6的：
BOOL就是Byte （BOOL是CHAR=BYTE）
DWORD是LONG
Handle是Long型
BOOLEAN是Byte
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