What are the common statements in the basics of VB language?

1. Assignment statement

Assignment of variable

Format:

［Let］ ＝

¨ Function: First calculate the value of the expression on the right side of the assignment number, and then assign the value to the variable.

Note:

"=" means "assignment" rather than "equal to", x = y and y = x are not equivalent.

The left side of "=" can only be variables, not values ​​or expressions. The following statement is wrong:

4 = x y

a b/2 = 6

Only one variable can be assigned a value at a time. If you want to assign the same value to multiple variables, you can only use multiple assignment statements.

For example: sum = 0: i = 0 cannot be written as: sum = i = 0

Dynamic setting of object attributes and return of object attribute values

Dynamics of object attributes Setting

Format: object name. Attribute name =

For example:

Command1.Caption = "Calculation"

Text2.Text=Str(c)

¨ Note: The Name attribute can only be assigned a value in the properties window

¨ Return of object attribute value

¨ For example:

R = Val (Text1.Text)

Related recommendations: "FAQ"

2.Print statement

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