CODEWITHSUNDEEP
pythonpython-3.x
router7
router7

Reputation: 67

What does the continue statement do?

Can someone explain why this causes an infinite loop even tho the continue from what I have been reading should "skip" the iteration 

x = 0
while x < 50:

    if x == 33:
       print("I hit 33")
       continue
    else:
       pass
    print(x)
    x+=1

Upvotes: 0

Views: 312

Answers (5)

John Meade
John Meade

Reputation: 160

I'm guessing the code you're trying to get at is as follows, which will print out each integer from 0 - 50 (exclusive), except it will print "I hit 33" for the integer 33.

x = 0
while x < 50:
    if x == 33:
        print("I hit 33")
    else:
        print(x)
    x += 1

You really don't need the continue or pass in this instance. continue continues with the next cycle of the nearest enclosing loop. pass is usually only used as a placeholder when a block is expecting a statement but you're not ready to use the statement.

Upvotes: -1

mhoffman2016
mhoffman2016

Reputation: 100

You are skipping the increment that happens at the end of the while loop when you call continue. The following will automatically increment if you want to keep the continue statement:

for x in range(50):
    if x == 33:
        print("I hit 33")
        continue
    else:
        print(x)

Otherwise, delete the continue.

Upvotes: 2

FHTMitchell
FHTMitchell

Reputation: 12156

continue goes to the next iteration. You want break which exits the loop. See:

for i in range(10):
    if i == 5:
       continue
    if i == 8:
       break
    print(i)

outputs:

0
1
2
3
4
6
7

Upvotes: 1

Lucas Wieloch
Lucas Wieloch

Reputation: 818

I think you are confusing break and continue.

  • continue will skip to next iteration in innermost loop
  • break will leave innermost loop

Upvotes: 1

nosklo
nosklo

Reputation: 223082

The continue command restarts the innermost loop at the condition.

That means after x reaches 33, x += 1 will never execute because you will be hitting the continue and going back to the while line without running the rest of the code block.

x will forever be 33 so you will have a infinite loop.

Upvotes: 4

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