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sum = 0 x = 1 while x < 100: sum += 1 x +=2 print sum 怎么我的值是50
2017-08-17
源自：初识Python 5-5
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sum = 0x = 1N = 100while x < N: if x % 2 != 0: sum += x x += 1print sum
sum=sum+x，求的是所有奇数的和
sum处出现了错误，应该为sum=sum+x
sum+=x
x = 0
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