Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
471 views
in Technique[技术] by (71.8m points)

asp classic - Get the type of a variable in VBScript

How do I get the type of a variable using VBScript?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Is VarType what you need?

Returns a value indicating the subtype of a variable.

+--------------+-------+---------------------------------------------+
|   Constant   | Value |                 Description                 |
+--------------+-------+---------------------------------------------+
| vbEmpty      |     0 | Empty (uninitialized)                       |
| vbNull       |     1 | Null (no valid data)                        |
| vbInteger    |     2 | Integer                                     |
| vbLong       |     3 | Long integer                                |
| vbSingle     |     4 | Single-precision floating-point number      |
| vbDouble     |     5 | Double-precision floating-point number      |
| vbCurrency   |     6 | Currency                                    |
| vbDate       |     7 | Date                                        |
| vbString     |     8 | String                                      |
| vbObject     |     9 | Automation object                           |
| vbError      |    10 | Error                                       |
| vbBoolean    |    11 | Boolean                                     |
| vbVariant    |    12 | Variant (used only with arrays of Variants) |
| vbDataObject |    13 | A data-access object                        |
| vbDecimal    |    14 | Decimal Value                               |
| vbByte       |    17 | Byte                                        |
| vbLongLong   |    20 | LongLong integer (64 bit)                   |
| vbArray      |  8192 | Array                                       |
+--------------+-------+---------------------------------------------+

The VarType function never returns the value for Array by itself. It is always added to some other value to indicate an array of a particular type. The value for Variant is only returned when it has been added to the value for Array to indicate that the argument to the VarType function is an array. For example, the value returned for an array of integers is calculated as 2 + 8192, or 8194. If an object has a default property, VarType (object) returns the type of its default property.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...