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| Data Type | Size in Bytes | Description | Type | | Byte | 1 | 8-bit unsigned integer | System.Byte | | Char | 2 | 16-bit Unicode characters | System.Char | | Integer | 4 | 32-bit signed integer | System.Int32 | | Double | 8 | 64-bit floating point variable | System.Double | | Long | 8 | 64-bit signed integer | System.Int64 | | Short | 2 | 16-bit signed integer | System.Int16 | | Single | 4 | 32-bit floating point variable | System.Single | | String | Varies | Non-Numeric Type | System.String | | Date | 8 | | System.Date | | Boolean | 2 | Non-Numeric Type | System.Boolean | | Object | 4 | Non-Numeric Type | System.Object | | Decimal | 16 | 128-bit floating point variable | System.Decimal |
dim 是用来定义 一个 object 或类型
- Imports System.Console
- Module Module1Sub Main()
- Dim a,b,c as Integer
- 'declaring three variables of type integer
- a=10
- b=20
- c=a+b
- Write("Sum of a and b is" & c)
- End Sub
- End Module
复制代码
[ 本帖最后由 goodday 于 2008-7-19 06:46 PM 编辑 ] |
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