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Xiaobian today takes you to understand how to force the declaration of variable option explicit in VB language, and the knowledge points introduced in this article are very detailed. Friends who feel helpful can browse the content of the article together with Xiaobian, hoping to help more friends who want to solve this problem find the answer to the question. Let's learn more about "how to force the declaration of variable option explicit in VB language" together with Xiaobian.

mandatory declaration variable

option explicit

Option explicit is added in general to make a global declaration

Mandatory declaration variables:

1. It can reduce the error rate

2. You can develop a good habit of variable declaration, which can play a good foundation for subsequent language learning.

Examples:

Dim a1 As Integer

a1 = 123

MsgBox a1, vbCritical, "Message"

The method of forced declaration of variables in interface operation

Fig.

1. It is easy to misread 1 and l when programming, and variable declarations must be emphasized.

2. Develop a good habit of declaring variables

Interface:

Source Code:

Private Sub Command1_Click()Dim a1 As Integera1 = 123

MsgBox a1, vbCritical, "Message"End Sub

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