Debug.Print OptionArgument(i) End Sub Function OptionArgument(ByRef iValAs Integer, _ Optional iTwo As Integer) If IsMissing(iTwo) Then OptionArgument = iVal Else OptionArgument = iVal + iTwo End If End Function 运行代码后的结果如下图...
The VBA IsMissing function returns False if the optional argument has been provided or True if it has not.Usage:IsMissing(variable)Example of UsageUsing the IsMissing function to check if the optional argument lastName has been provided (and avoid displaying the name in the dialog box if it...
此示例使用Function语句声明组成Function过程主体的名称、参数和代码。 上一个示例使用初始化的硬类型Optional参数。 VB ' The following user-defined function returns the square root of the' argument passed to it.FunctionCalculateSquareRoot(NumberArgAsDouble)AsDoubleIfNumberArg <0Then' Evaluate argument.ExitFu...
Function 函数名(参数1,参数2,Optional 参数3 As Integer=1)直接在函数定义的框里面将默认值写上,注意...
The syntax for the UBound function is: UBound (arrayname, [ dimension ]) –arrayname: This is a required argument that specifies the name of the array for which we want to determine the upper bound. –dimension: This is an optional argument that specifies which dimension of the array ...
[IncludeLeadingDigit]: An enumeration value to specify whether a leading zero should be displayed [This is an optional argument and if omitted VBA will use vbUseDefault by default]. vbFalse: To not to a leading zero. vbTrue: Display a leading zero. ...
Next, we use the CreateObject function and pass the application name “Excel.Application” as an argument. This tells VBA to create an instance of the Excel application. The Set keyword is used to assign the object to our excelApp variable. Once the object is created, we can use it to ...
Syntax Weekday(Date, [FirstDayOfWeek]) Arguments Date: A valid date for which you want to get the weekday. [FirstDayOfWeek]: A string to define the first day of the week [This is an optional argument and if omitted VBA takes vbSunday by default]. ...
无）（有）参数1、在add_argument中添加一个或两个中标-开头的参数作为可选参数。
15.Argument not optional (Error 449)参数不可选(错误 449) 16.Argument required for property Let or property SetProperty Let 或 Property Set 所需的参数 17.Array already dimensioned数组已指定维度 18.Array argument must be ByRef数组参数必须是 ByRef ...