#ElseIf GermanVersion Then ' . #Else ' . #End If 如果在编译时将 FrenchVersion 条件编译常量的值设置为 True,则会编译法语版本的条件代码。 如果将 GermanVersion 常量的值设置为 True,编译器将使用德语版本。 如果两者均未设置为 True,则会运行最后一个 Else 块中的代码。 备注 如果代码不是当前分支的...
安装Windows 3.x时使用标准VGA显示驱动,安装完成后在“Windows 设置程序”中更改显卡驱动。 Use the basic VGA driver for the initial install, then change the video driver using Windows Setup in the Main program group. 安装显卡驱动时如果提示插入S3 Trio 64V Flat Mode Driver软盘,则此时需要将路径填写成...
If ((functionname[(argumentlist)] / 3) <=expression) Then 调用Function过程时,无需使用其返回值。 否则,将执行该函数的所有操作,但将忽略返回值。MsgBox通常是以这种方式调用的。 声明和调用的演示 下面的Function过程根据其他两边的值计算直角三角形的最长边(斜边)。
Exit For is often used after an evaluation of some condition, for example, in an If...Then...Else structure. You might want to use Exit For for the following conditions: Continuing to iterate is unnecessary or impossible. This might be caused by an erroneous value or a termination request...
Loop( Expression.IfThenElse( Expression.GreaterThan(value, Expression.Constant(1)), Expression.MultiplyAssign(result, Expression.PostDecrementAssign(value)), Expression.Break(label, result) ), label ) ) ' Compile an expression tree and return a delegate. Dim factorial As Integer = Expression....
APIs enable us to separately develop code for various purposes, then reuse it widely. No Java library can contain all the methods that we might need for a given computation, so this ability is a crucial step in addressing complex programming applications. Accordingly, programmers normally think ...
If you are interested in the exit code of the defunct thread, supply the address of an area to receive it. Remember that pthread_join() works only for target threads that are nondetached. When there is no reason to synchronize with the termination of a particular thread, then that thread...
If thedoPrintvariable is true, then the application will request that the job be printed by calling thePrinterJob.printmethod. if (doPrint) { try { job.print(); } catch (PrinterException e) { // The job did not successfully // complete ...
PLC Programming: Set and Reset Internal relays only retain their state if the input devices that are placed to activate them are also retaining their activation states. For set and reset relays, however, you can actually retain their state indefinitely and then remove the state using another cond...
())' The method then can process the result in some way.DimleisureHoursAsIntegerIftoday.First() ="S"ThenleisureHours =16ElseleisureHours =5EndIf' Because the return statement specifies an operand of type Integer, the' method must have a return type of Task(Of Integer).ReturnleisureHoursEnd...