While Loops in Python
A while
loop allows you to execute a block of code repeatedly as long as a condition is true. The condition is checked before the code inside the loop is executed.
Basic While Loop:
Python
i = 1
while i <= 5:
print(i)
i += 1
# Output:
# 1
# 2
# 3
# 4
# 5
Using a Break Statement:
The break
statement can be used to exit the loop prematurely if a condition is met:
Python
i = 1
while i <= 5:
if i == 3:
break
print(i)
i += 1
# Output:
# 1
# 2
Using a Continue Statement:
The continue
statement skips the current iteration and moves on to the next iteration of the loop:
Python
i = 1
while i <= 5:
i += 1
if i == 3:
continue
print(i)
# Output:
# 2
# 4
# 5
# 6
While loops are useful when you need to repeat a block of code but don"t know in advance how many times it should be repeated.
Import Links
Here are some useful import links for further reading: