Okay, so today I wanted to mess around with something I’ve been putting off – understanding how “break” statements really work inside loops. I always kinda got the gist, but I figured it was time to get my hands dirty and really see it in action. I am not good at theroy, So I like practice.
Firing Up the Code Editor
First things first, I opened up my trusty code editor. Nothing fancy, just something simple to write and run some basic Python. I love Python! I started with a super basic “for” loop. You know, the kind that just counts from, like, 1 to 10:
for i in range(1, 11):
print(i)
Ran that, and yep, it printed 1 through 10. No surprises there. That’s the baseline, the “before” picture.
Adding the ‘break’
Now for the fun part. I tossed in a “break” statement. I wanted to see what would happen if I told it to stop the loop when it hit, say, the number 5. So, I added an “if” condition:
for i in range(1, 11):
print(i)
if i == 5:
break
I hit run, and boom! It printed 1, 2, 3, 4, 5, and then… stopped. Just like that. The “break” statement really did its job – it just kicked us right out of the loop the moment ‘i’ became 5. I tried it!
Playing Around with Conditions
Of course, I couldn’t just stop there. I changed the condition. What if I wanted to break at 8? Easy peasy, I just changed the “if” statement:
for i in range(1, 11):
print(i)
if i == 8:
break
Ran it, and sure enough, it stopped at 8. So, the “break” isn’t tied to a specific number, it’s all about that condition I set in the “if” statement.
Nested Loops and Multiple Breaks.
And I also did an experiment on nested loops.
for i in range(1,4):
print("outer loop:",i)
for j in range(1,3):
print("inter loop:",j)
if j==2:
break;
the output is:
outer loop: 1
inter loop: 1
inter loop: 2
outer loop: 2
inter loop: 1
inter loop: 2
outer loop: 3
inter loop: 1
inter loop: 2
I learned that the “break” only can stop inner loop, not the outer loop. I got it.
Wrapping Up
It was simple, but it was real helpful for me.I really do the coding and see what happens. That’s how I like to learn. I think I learn a lot today.
