SetMyObject =NewObject' Create and Assign 将对象变量设置为等于Nothing将中断对象变量与任何特定对象的关联。 这将防止因意外更改变量而更改对象。 关闭关联的对象后,对象变量始终设置为Nothing,以便可以测试对象变量是否指向有效的对象。 例如: VB IfNotMyObjectIsNothingThen' Variable refers to valid object.. ....
' Declare MyObject as Variant data type.DimMyObject' Declare MyObject as Object data type.DimMyObjectAsObject' Declare MyObject as Font type.DimMyObjectAsFont 如果使用对象变量却没有实现声明,则默认是Variant(多样变量) 使用Set将对象变量分配给变量 SetMyObject = YourObject' Assign object reference.Set...
In many programming languages, you can assign a value to the variable in the same statement that you use to declare it. In VBA, declaring VBA variables is optional, but you can’t declare AND set the variable at the same time. Instead, you’ll need tocreate a new line that assigns a...
Excel VBA Declare Array The declaration of the array in VBA is similar to that of variables performed by the same dim statement or static public or private statement. The only difference between declaring an array and declaring a variable is that while declaring an array, we have to provide ...
You must declare your variable on one line and then assign the value on a new line. Explicitly assigning a value to a local variable after it has been declared is recommended. DimlMyNumberAsLong lMyNumber = 500 Using aColon Separatorto put these on one line makes your code harder to read...
TheNewkeyword can't be used to declare variables of any intrinsicdata typeor to declare instances of dependent objects, and it can't be used withWithEvents. typeOptional. Data type of the variable; may beByte,Boolean,Integer,Long,Currency,Single,Double,Decimal(not currently supported),Date,Str...
To declare a variable that will refer to an instance of the Excel Worksheet clas Dim ws1 As Worksheet To put a reference into it Set ws1 = Worksheets(“Sheet1”) 对象集合 There is a special form of objects known as Collections
MyVar = "45 Help" ' Assign value. MyCheck = IsNumeric(MyVar) ' Returns False.▌IsObject( expression ) as Boolean 返回一个指示标识符是否表示某个对象的变量的 Boolean 值。 示例 Dim MyInt As Integer ' Declare variables. Dim YourObject, MyCheck ' Note: Default variable type is Variant. Dim...
DimMyTime MyTime =#4:35:17 PM#' Assign a time.Time= MyTime' Set system time to MyTime. 另請參閱 Time 函數 資料類型 陳述式 支援和意見反應 有關於 Office VBA 或這份文件的問題或意見反應嗎? 如需取得支援服務並提供意見反應的相關指導,請參閱Office VBA 支援與意見反應。
Public可选。 指示Property Set过程可以由所有模块中的所有其他过程访问。 如果在包含Option Private语句的模块中使用此过程,则此过程在项目的外部不可用。 Private可选。 指示Property Set过程仅能由声明它的模块中的其他过程访问。 Friend可选。 仅在类模块中使用。 指示Property Set过程在整个项目中可见,但对于对象...