Скачать или смотреть Vbscript Part 8 - Loops Introduction

In this video we have covered.

Agenda :

1. What are loops?
2. Why do we use loops ?
3. What are the different types of loops available in vbscript ?



1A. Loop is a sequence of operations that are performed repeatedly in some specified or structured order.
Eg: print "A" 10 times....
2A. We use loops to repeat same or similar kind of code number of times.

3A. For loops and Do loops
i. For loop:
For loop syntax :
For counter = start to end [Step 1] //counter - variable
execute/print statements //start and end are number values
Next
eg : for i = 0 to 10 Step 1
msgbox "A"
next
ii. For each :
iii. Do while :
do while syntax:
Do while condition
execute/print statements
loop
Ex : a = 0
Do while a lesser than 5
a = a+1
msgbox "A"
Loop



iv. Do until
Do until condition
execute/print statements
loop
Ex : a = 10
Do until a greather than 5
a = a-1
msgbox "A"
Loop



Code :

' Print A 10 times

for i = 0 to 10
temp = temp & "A" &vblf
next

msgbox temp

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