输出为何是2550 多出来的50哪来的
sum = 0
x = 0
while True:
    x = x + 1
    if x > 100:
        break
    if x%2==0:
        sum=sum+x
print (sum )
sum = 0
x = 0
while True:
    x = x + 1
    if x > 100:
        break
    if x%2==0:
        sum=sum+x
print (sum )
 
                            2019-12-30
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