Transfer Statements by Learnbay

2. Transfer Statements • In python, loop statements or transfer statementsallows you to run the code block repeatedly. But sometimes you will need to exit the loop entirely or skip the particular section of the loop when it reaches the specified condition. It can be accomplished using the loop control mechanism.  • In python, we have loop control statements can be used to alter or control the loop execution flow depending on specified conditions.

3. The loop control statements supported by Python are: • break statement:Terminates the loop statement and transfers execution to the statement immediately following the loop. • continue statement:Causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating. • pass statement:The pass statement in Python is used when a statement is required syntactically but you do not want any command or code to execute.

4. Break statement • The break statement terminates the loop containing it. Control of the program flows to the statement immediately after the body of the loop. • Thebreakstatement can be used in both while and for loops. • If you are using nested loops, the break statement stops the execution of the innermost loop and start executing the next line of code after the block. • Syntax:break

5. Flow Chart

6. Example • for i in range(10): if i == 7:break    else:        print(i) • O/P:0 12 3 45 6

7. Continue Statement • It returns the control to the beginning of the while loop. • The continue statement rejects all the remaining statements in the current iteration of the loop and moves the control back to the top of the loop. • Continue statement forces the loop to continue or execute the next iteration. When the continue statement is executed in the loop, the code inside the loop following the continue statement will be skipped and the next iteration of the loop will begin. • The continue statement can be used in both while and for loops. • Syntax: continue

8. Flow diagram

9. Example • fori in range(10):    if i ==7 or i == 4: continue    else: print(i) • O/P:0 1 2 3 5 6 8 9

10. Pass statement • As the name suggests, the pass statement actually doesn't do anything. The Python Pass statement is used when a statement is required syntactically, but you do not want any command or code to be executed.  • It's like zero operation, because nothing happens when it's executed.  • Pass statement can also be used to write empty loops. Pass is also used for empty control statements, functions and classes. • It is used to write boilerplate code. • Syntax: pass

11. Flow chart

12. Example-pass boilerplate code • fori in range(10):passdef f1():      pass var = 0whilevar < 100:pass var += 1print(i) • O/P:9

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