Shulou(Shulou.com)06/01 Report--

This article mainly introduces how to use for in VB language, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

I. Review of for fundamentals

Question: how can it be more convenient to use when the code is prompted?

When the code prompts you to select it, press the tab key for the selected item. The advantage is that we can position our cursor at the end of the current line of code. If pressing enter will break the line, it will reduce the efficiency of writing code.

Next, let's review the for statement.

Question: what does it mean inside the for loop?

The internal representation is between the for and next keywords.

For example:

For i....

Inside

Next i

Question: why does the for statement enter the body of the loop?

In fact, conditional judgment is hidden in the for statement. The conditional judgment we have learned is the if statement. The result of the judgment of the if statement is only two feasible true or false, which is the Boolean type boolean.

Question: how is the value of the custom initialization variable of the for loop incremented?

When the for loop is running, each custom initialization variable is appended with the value after step, and then the judgment is made.

Question: what is the value of the integer variable declared by default?

Declare for example dim i as integer by default, when an integer variable is declared, the value of that variable defaults to 0

Question: what is the operation of the for loop?

Example code:

For I = 1 To 5 Step 1

Code interpretation:

The running process of the for loop: we will compare the initialization variable with the variable after to.

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