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<Title> do... Loop Structure </title>
<Script language = "vb" runat = "server">
Sub page_load ()
Dim counter as integer = 0
Dim number as integer = 5' you can try to replace this number with 10
Do while number> 6' enter the loop when the comparison condition is true
Number-= 1
Counter + = 1
Loop
Response. Write ("put while in front and run" & counter & "Times <br> ")
Dim cout as integer = 0
Dim num as integer = 5' you can try to replace this number with 10
Do
Num-= 1
Cout + = 1
Loop while num> 6' is placed at the end of the loop, and the loop must be inspected at the beginning.
Response. Write ("put while on the back and run" & cout & "Times <br> ")
Dim cout1 as integer = 0
Dim num1 as integer = 3' here you can change it to a number larger than 5 to run it.
Do until num1 = 5' enters the loop when the comparison condition is false
If num1 <5 then exit do 'is a number smaller than 5, you must use this judgment. Otherwise, an error occurs. do not believe it.
Num1-= 1
Cout1 + = 1
Loop
Response. Write ("using until to run" & cout1 & "Times <br> ")
Dim cout2 as integer = 0
Dim num2 as integer = 10
While num2> 5
Num2-= 1
Cout2 + = 1
End while
Response. Write ("using while to run" & cout2 & "Times <br> ")
Dim cout3 as integer = 0
Dim num3 as integer = 8
While num3 <> 10
If num3 <0 then exit while
Num3-= 1
Cout3 + = 1
End while
Response. Write ("using exit while to run" & cout3 & "Times <br> ")
End sub
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