Dim myObject As Object Avoid This Data Type Using the generic Object data type is much less efficient than using the specific object declaration.Whenever you use this data type it will always use late binding.You can find out if an Object variable has been set by using the "Is Nothing"...
A Data Type refers to how the data is stored in memory and how many bytes that data needs.The data type of a variable (or object) tells the compiler the size of the object.You should always try and use the data type that uses the smallest number of bytes.All variables must have an...
Single (4):单精度浮点数,含7位有效数字 Double (8):双精度浮点数,含15位有效数字 Currency (8):定点货币类型,精确到小数点后4位 Decimal (14):高精度十进制数,适用于金融计算 Date (8):日期时间类型,存储范围从公元100年1月1日至9999年12月31日 String:可变长度字符串类型 Object (4):通用对象引用类型...
4 使用With语句读取对象属性 When working with objects, use the With statement to reduce the number of times object properties are read. The following example shows the code before and after making the change to use the With statement. 修改前: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
Object is for storing ranges; such as application, workbook, worksheet, and range. It’s not to say that you should never use Variant as a data type. If you are storing data that changes from one type to another (i.e. Boolean on moment and text message the next moment), a Variant ...
对于Object对象,其实我们传递的只是他的指针,也就是VarPtr得到的那个数字,是指向Object所在内存的地址。 可以理解为参数其实就是一个LongPtr类型,所以你是复制一份这个LongPtr类型的数字传递,还是把这个LongPtr类型所在的内存地址传递给函数,对于Object这个对象来说,是没有区别的。它最终都要通过这个数字所代表的内存地...
You can declare an object variable with theObjectdata type when the specificobject typeis not known until the procedure runs. Use theObjectdata type to create a generic reference to any object. If you know the specific object type, you should declare the object variable as that object type....
DimMyDataAsDataObjectSetMyData =NewDataObject MyData.SetText Range("H7").Value MyData.PutInClipboard 取得路径中的文件名 PrivateFunctionGetFileName(ByValsAsString)Dimsname()AsStringsname=Split(s,"\") GetFileName= sname(UBound(sname))End Function ...
Table 1 includes only the data types that you are likely to use when developing with the Project object model. For a list of built-in types, see the Microsoft Visual C# Types Reference Tables, the Visual Basic Data Type Summary, and other references in Visual Studio Help. Table 1. Compari...
. One example is that an Integer in VBA is equivalent to a Short in Visual Basic and a Long in VBA is equivalent to a Visual Basic Integer. There are also some data types that are no longer supported in Visual Basic, such as the Variant—instead, you can use the Object data...