Guide to VBA Variable Declaration. Here we understand how to declare variable in VBA and when to use it with examples & download template
The variable is used by a subroutine in a different module, "module1". But when that subroutine is called, VBA flags the variable as unknown. The only way I was able to get it to work was by putting an identical Public declaration at the top of module1. Nothing I have read indicates...
AliasOptional. Indicates that the procedure being called has another name in the DLL. This is useful when the external procedure name is the same as a keyword. You can also useAliaswhen a DLL procedure has the same name as a publicvariable,constant, or any other procedure in the samescope...
一个使用变量的程序: 1SubAgeCals()2'variable declaration(声明变量)3DimFullNameAsString4DimDateOfBirthAsDate5DimAgeAsInteger67'assign values to variables(赋值给变量)8FullName ="John"9DateOfBrith = #01/03/1967#1011'calculate age(计算年龄)12Age =Year(now())-Year(DateOfBirth)1314'print results...
當[選項明確] 出現在模組中時,您必須使用Dim、Private、Public、ReDim或Static語句明確宣告所有變數。 如果您嘗試使用未宣告的變數名稱,則會在編譯時期發生錯誤。 如果您未使用Option Explicit語句,除非使用Def類型語句指定預設類型,否則所有未宣告的變數都是Variant類型。
strMsg ="This variable can't be used outside this module."EndSubSubUsePrivateVariable() MsgBox strMsgEndSub 公共模块级作用域 如果使用Public,则声明了一个公共变量。 变量生存期 初始化变量操作如下: 数值变量初始化为零, 可变长度字符串初始化为零长度字符串 ("") ...
当“选项显式 ”出现在模块中时,必须使用 Dim、 Private、 Public、 ReDim 或Static 语句显式声明所有变量。 如果您要使用未声明的变量名称,则会在编译时出现错误。 如果您没有使用“Option Explicit”语句,所有为声明的变量都将为“变量”类型,除非默认类型是由“Def” 类型语句指定的。 备注 使用“Option Expli...
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 a size of an array whic...
Public myVariable As Integer myVariable = 10 在上述代码中,我们声明了一个名为"myVariable"的公共整型变量,并将其赋值为10。这样,在整个VBA程序中,我们都可以使用和修改这个变量的值。 声明公共变量的优势在于可以方便地在不同的模块和过程中共享数据,避免了重复定义变量的麻烦。同时,公共变量的作用域更广,可以...
Public 公共常量必须在模块的上面,第一个Sub语句之上声明。声明常量的时候,你可以使用下列数据类型之一Boolean,Byte,Integer,Long,Currency,Single,Double,Date,String或者Variant。 象变量一样,多个常量也可以在一行里声明,例如: Const Age As Integer = 25, City As String = "Denver", PayCheck As Currency = 35...