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This article introduces you how to use Python while language smoothly, the content is very detailed, interested friends can refer to, hope to be helpful to you.

In the long-term use of Python while language, we have summed up a lot of knowledge that we need to learn, among which the use of whlie sentences is very important.

# coding:utf-8 # the following function is used to calculate the number of even numbers def NumberOfEven (x): count = 0 while (x): if (x% 2 = = 0): count + = 1 x-= 1 return count print NumberOfEven (2) # the execution process of the while program is as follows: # first calculate the value of the conditional expression followed by while and get conditions 1 and 0 # if the condition is 0, exit the while loop Execute statements outside the loop # if condition 1, execute each statement in the while loop, and then return to step # ★ Note ★: the loop body must have a condition to make the loop end, otherwise, it will become an endless loop program # use the while loop to print the ninety-nine multiplication table I = 0 j = 0 while (I

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