A Case statement with multiple clauses can exhibit behavior known as short-circuiting. Visual Basic evaluates the clauses from left to right, and if one produces a match with testexpression, the remaining clauses are not evaluated. Short-circuiting can improve performance, but it can produce ...
ACasestatement with multiple clauses can exhibit behavior known asshort-circuiting. Visual Basic evaluates the clauses from left to right, and if one produces a match withtestexpression, the remaining clauses are not evaluated. Short-circuiting can improve performance, but it can produce unexpecte...
VisitCaseStatement(CaseStatementSyntax) Method Reference Feedback Definition Namespace: Microsoft.CodeAnalysis.VisualBasic Assembly: Microsoft.CodeAnalysis.VisualBasic.dll Package: Microsoft.CodeAnalysis.VisualBasic v4.7.0 Source: Syntax.xml.Main.Generated.vb C# 复制 public override Microsof...
Select Case 语句可以对一个变量进行相对于值列表的判断。每个值都被称为一个情况(Case),并为每个情况执行不同的操作。语法 VB 中的 Select Case 语句的语法如下:expression: 是必须为 VB 中的基本数据类型的表达式。即,Boolean, Byte, Char, Date, Double, Decimal, Integer, Long, Object, SByte, Short, ...
表示case 語句及其後續區塊。 C# 複製 public static Microsoft.CodeAnalysis.VisualBasic.Syntax.CaseBlockSyntax CaseBlock(Microsoft.CodeAnalysis.VisualBasic.Syntax.CaseStatementSyntax caseStatement); 參數 caseStatement CaseStatementSyntax 開始案例區塊的 語句。 傳回 CaseBlockSyntax 適用於 Ro...
A statement in Visual Basic is a complete instruction. It can contain keywords, operators, variables, constants, and expressions. Each statement belongs to one of the following categories: Declaration Statements, which name a variable, constant, or procedure, and can also specify a data type. ...
A statement in Visual Basic is a complete instruction. It can contain keywords, operators, variables, constants, and expressions. Each statement belongs to one of the following categories: Declaration Statements, which name a variable, constant, or procedure, and can also specify a data type. ...
在Try區塊中擲回例外狀況時,Visual Basic 會尋找處理例外狀況的Catch陳述式。 如果找不到相符的Catch陳述式,Visual Basic 會檢查呼叫目前方法的方法,並依此類推呼叫堆疊。 如果找不到Catch區塊,則 Visual Basic 會向使用者顯示未處理的例外狀況訊息,並停止執行程式。
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 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...