Visual Basic 循环 当需要多次执行一段代码时,可能会需要循环。一般来说,语句是按顺序执行的:函数中的第一个语句首先执行,然后是第二个,依此类推。VB 语言提供了各种控制结构,可以让程序执行更复杂的逻辑。循环语句可以多次执行语句或语句组,以下是大多数编程语言中循环语句的一般形式:...
For Each Loops See also Visual Basic loop structures allow you to run one or more lines of code repetitively. You can repeat the statements in a loop structure until a condition is True, until a condition is False, a specified number of times, or once for each element in a collection....
Thefor loopis just like the example we mentioned before, you perform this loop a set number of times, it’s not based on a condition like the other loops when it comes to repeating. You can set the number of times this loop repeats, specify the number at which the loop increases, and...
Nesting Loops.You can nestDoloops by placing one loop within another. You can also nest different kinds of control structures within one another. For more information, seeNested Control Structures. Transferring Out of the Loop.TheExit Statement (Visual Basic)transfers control immediately to the stat...
For more examples, see Collections (C# and Visual Basic) and Arrays in Visual Basic. Nested Loops You can nest For Each loops by putting one loop within another. The following example demonstrates nested For Each…Next structures. VB 复制 ' Create lists of numbers and letters ' by using ...
Back to the top of the page.More VB Resources Visual Basic 6.0 Examples Visual Basic 6.0 Code Bank Pat's Blog Apps from patorjk.com Text to ASCII Art Generator Keyboard Layout Analyzer JavaScript Snake Game Scrolling Text Time Waster! Social Tweet ...
7.17 initializes rectangular array values and uses nested For...Next loops to traverse the array (that is, to manipulate every array element). The contents of the array are displayed in outputTextBox. Click here to view code image 1 ' Fig. 7.17: RectangularArray.vb 2 ' Initializing and ...
Visual Basic has a few kinds of loops, but we’ll just cover two of them. The For Loop For loops are usually used in a counting fashion. You can think of a FOR loop like this: start with a counter set to some value (E.g. 1) keep going around until that counter gets to some...
Some routine processes, such as loops and exception handling, can be difficult to handle in traditional asynchronous code. In an async method, you write these elements much as you would in a synchronous solution, and the problem is solved....
Visual Basic Save Share via Facebookx.comLinkedInEmail For...Next Statement (Visual Basic) Article 09/15/2021 13 contributors Feedback In this article Syntax Parts Simple Examples Nesting Loops Show 6 more Repeats a group of statements a specified number of times. ...