If 运算符 (Visual Basic) 项目 2024/03/06 本文内容 语法 使用三个参数调用的 If 运算符 使用两个参数调用的 If 运算符 另请参阅 使用短路计算根据条件返回两个值之一。 可以使用三个参数或两个参数调用If运算符。 语法 VB If( [argument1,] argument2, argument3 ) ...
false.Console.WriteLine(If(False,"TruePart","FalsePart"))Dimnumber =3' With number set to 3, this statement prints Positive.Console.WriteLine(If(number >=0,"Positive","Negative")) number =-1' With number set to -1, this statement prints Negative.Console.WriteLine(If(number >=0,"...
Returns a copy of this with the Condition property changed to the specified value. Returns this instance if the specified value is the same as the current value.
HOW TO:取得與 Visual Basic 執行階段錯誤有關的資訊 Visual Basic 中可截獲的錯誤 無法取得這個 Visual Basic 錯誤的說明 Visual Basic 編譯器訊息 Visual Basic 編譯器訊息 必須有 '-' '!' 的左運算元必須有介面型別、類別或介面型別,但此運算元具有型別 '<type>' '#Else' 之前必須搭配相對應的 '#If'...
如需詳細資訊,請參閱 Visual Basic 中的存取層級。 規則 宣告內容。 您只能在模組層級使用 Shared。 這表示 Shared 元素的宣告內容必須是類別或結構,且不能是來源檔案、命名空間或程序。 合併的修飾元。 您無法在相同的宣告中,與 Overrides、Overridable、NotOverridable、MustOverride 或Static 一起指定 Shared。
Visual Basic 的結構化例外處理概觀 發行項 2011/08/15 本文內容 Try...Catch...Finally 陳述式 Catch 區塊中的錯誤篩選 Try…Catch 區塊的分支 結構化例外處理常式範例 請參閱 Visual Basic 支援結構化例外處理 (Structured Exception Handling),可幫助您使用強固、全面性的錯誤處理常式來建立和維護程式。 結構...
Visual Basic 6.0 Runtime Extended Files: selected ActiveX control OCX files, libraries, and tools shipping with the IDE media and as an online release. The Visual Basic 6.0 IDE support lifetime VB6 development is no longer supported. This support statement does not change the support policy for...
Visual Basic 6.0 IDE (Integrated Development Environment). Visual Basic 6.0 Runtime: the base libraries and execution engine used to run VB 6.0 applications. Visual Basic 6.0 Runtime Extended Files: selected ActiveX control OCX files, libraries, and tools shipping with the IDE media and as an ...
Visual Basic 6.0 IDE (Integrated Development Environment). Visual Basic 6.0 Runtime: the base libraries and execution engine used to run VB 6.0 applications. Visual Basic 6.0 Runtime Extended Files: selected ActiveX control OCX files, libraries, and tools shipping with the IDE media and as an ...
Bitwise operators work with bits of a binary number. Bitwise operators are seldom used in higher level languages like Visual Basic. SymbolMeaning Not bitwise negation Xor bitwise exclusive or And bitwise and Or bitwise orThe bitwise negation operator changes each 1 to 0 and 0 to 1. ...