Dim x As Integer 整数 Dim st As String 文本 Dim rg As Range 对象 Set rg = Range("A1") ·对象赋值 Dim arr(1 to 10) As Integer 数组 Long 长整数, Single 单精度,Double 双精度,Date 时间 Public x As Interger ‘声明全局变量,所有模块都能用,不建议,可以使用函数取变量 isnumeric(x) 判断...
GetFieldStrType = "adNumeric" Case adPropVariant GetFieldStrType = "adPropVariant" Case adSingle GetFieldStrType = "adSingle" Case adSmallInt GetFieldStrType = "adSmallInt" Case adTinyInt GetFieldStrType = "adTinyInt" Case adUnsignedBigInt GetFieldStrType = "adUnsignedBigInt" Case ad...
CSngSingle负值为 -3.402823E38 到 -1.401298E-45;正值为 1.401298E-45 到 3.402823E38。 CStrStringCStr 的返回值取决于expression参数。 请参阅下表。 CVarVariant和“Double”针对数值型的范围相同。 和“字符串”针对非数值型的范围相同。 注解 如果传递给函数的expression超出转换目标数据类型的范围,则会发生错误...
3)定义第三个过程,用于定位业务章生成的位置。Public Sub MdataSource19()Dim mtop As Double, Pg, Mst, seardata, y ''Dim mydata, mPage mtop = 0: mPage = ActiveWindow.Panes(1).Pages.Count ''ClearClipBoard Selection.GoTo wdGoToPage, wdGoToAbsolute, 1 '将光标定位于第N页,页 首 Wit...
1、Public Sub 技巧12_001()创建数据库文件mdb 先引用Microsoft dao 3.6 object library Dim myDatabase As DAO.Database 定义数据库变量 Dim myDataTable As DAO.TableDef 定义数据表变量 Dim myDatabaseName As String 定义数据库名称 Dim myDataTableName As String 定义数据表名称 设置要创建的数据库名称(...
Const 常量名称 As 数据类型 = 存储在常量中的数据 例如:Const PI As Single = 3.14 ' 定义一个浮点常量为PI,值为3.14变量声明方法如下:Dim 变量名 As 数据类型变量名,必须字母或汉字开头,不能 包含空格、句号、感叹号等。数据类型,对应上面 ↑表1.1里的那些更多的声明方法,跟Dim声明的区别是作用范围不同:Pr...
Dim N As Single Dim P As Single M=Abs(-7) N=Int(-2.5) P=M+N 则P的值是 A 9 B-9 C 5 D 4 参考答案:D 提示:7+(-3)=4 建议:可以VBE中建立一个编辑模板如下,用于测试一些简单的程序运行结果 Public Sub test() Debug.Print Round(1.9) End Sub 对于特别简单的表达式输入,可以直接在立即...
9、logonetimeMsgBoxsMessage,vbInformation,sTitleboolRunOnce=TrueEndIfHandleError:ExithereonerrorEndFunction.改变字体大小PublicSubChangeFontsIfBelow1024x768(objPicAsObject)OnErrorResumeNextDimsngWidthAsSingle,sngHeightAsSingleDimclsSreenInfoAsNewScreenInfoDimDummyStringAsStringDimobjChildAsObjectsngWidth=clsS 10...
first column ' as the range for categories. r = objSelection.Rows.Count c = objSelection.Columns.Count If r > c Then Set objCategories = Range(Cells(1, 1), Cells(r, 1)) Else Set objCategories = Range(Cells(1, 1), Cells(1, c)) End If ' Create a single range from the union...
Within aVBA Environment, information is represented as data values. Adata valueis a single element from a specific finite domain of such elements. TheVBA Environmentdefines a variety ofvalue types. These value types collectively define the domain of VBA data values. Each value type has unique char...