Python While Loop: Complete Usage Guide
In Python, a while loop is used to repeatedly execute a block of code until a specified condition is no longer met. The basic syntax of a while loop is as follows:
while 条件:
# 循环体代码
At the beginning of each iteration, check whether the condition is True. If it is True, execute the loop body code and then check the condition again. If the condition is False, exit the loop and continue executing the code outside the loop.
It’s important to note that if the condition remains True, the loop will continue to execute indefinitely, potentially leading to an infinite loop. Therefore, when using a while loop, make sure the loop condition will eventually become False to prevent the occurrence of an infinite loop.
It is possible to control the execution of the loop through the following methods:
- Use the “break” statement inside the loop to exit the loop.
- Use the continue statement within a loop to skip the remaining code of the current iteration and directly move on to evaluate the next iteration.
