Python programming: loop control
Python is an easy-to-learn and easy-to-use programming language, and loop control is an integral part of the program. Loops allow us to repeatedly execute the same or similar blocks of code, which is very useful for dealing with large data sets or problems that require iterative operations.
There are two looping structures in Python: for loop and while loop. A for loop is a statement that iterates based on the elements in a given sequence, while a while loop executes while a specified condition is true. The following are example codes for the two loop structures:
for loop
fruits = ["apple", "banana", "orange"]
for fruit in fruits:
print(fruit)
while loop
num = 1
while num <= 5:
print(num)
num += 1
In addition to the two loop structures mentioned above, Python also provides some loop control statements, including break, continue, and pass statements. The break statement is used to jump out of the current loop, the continue statement is used to skip an iteration in the current loop, and the pass statement does not perform any operations, but is used as a placeholder to maintain the integrity of the code.
Sample Code for Loop Control Statements
for i in range(1, 11):
if i == 6:
break
elif i == 3:
continue
else:
pass
print(i)
The above is the basic knowledge and example code related to Python loop control. In actual programming, the loop structure is often used to process large-scale data sets and tasks that need to be repeated, so the understanding and mastery of loop control is very important.