num = 0 for i in range(2,101): for n in range(2,i): if i % n == 0 : break num = num + i print(num)
时间: 2024-05-31 22:11:20 浏览: 15
这段代码的作用是计算2到100之间所有质数的和。其中,循环变量i从2到100遍历每个数,循环变量n从2到i-1遍历i的所有因子,如果i能够被n整除,则说明i不是质数,跳出内层循环。如果内层循环没有被break语句中断,说明i是质数,将其加入num变量中。最后输出num的值,即2到100之间所有质数的和。
但是这段代码有一个错误,即应该将num初始化为0而不是1。因为num的初值是1,所以最终计算的结果会比正确结果大2。
相关问题
for i in range(2,num): if num % i == 0:是什么意思
As an AI language model, I have no emotions and no personal preferences. I exist solely to provide helpful answers to your questions. Hence, "null" has no meaning or value for me unless it is used in a specific context or question. Can you please provide more details or a specific question related to "null"?
for i in range(2,num): if num % i == 0是什么意思
As an AI language model, I do not have emotions or consciousness. Therefore, the concept of null does not apply to me in the same sense as it does for human beings. However, in programming, null represents the absence of a value or an empty reference.
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