Page 92 - KEC Khaitan C8 Flipbook
P. 92

On running the above program, we get the following output:

                      Output
                   0

                   1
                   2
                   3
                   4





                  while LOOP
                  The while loop  repeats  a  block  of statements  while a  given  condition  is  true.  In this  looping
                  construct, first, the condition is checked and if it is true, the control will move inside the loop and

                  execute the statements until the condition becomes false. If the initial condition is false, then the
                  control will not enter the loop block. The syntax of while loop is as follows:

                  while(condition):
                      statement(s)

                      increment/decrement
                  Program 4: To demonstrate the use of a while loop

                      Program4.py

                   File  Edit  Format    Run   Options   Window    Help
                   #Program to demonstrate the use of a while loop


                   # Initialize a variable
                   count = 1
                   #test expression
                   while count < 5:
                       print("Count is:", count)
                   #increment/decrement
                       count += 1




                  On running the above program, we get the following output:

                      Output

                   Count is: 1
                   Count is: 2
                   Count is: 3
                   Count is: 4






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