求1-2+3-4+5 ... 99中除了88以外的所有数的和

i = 0
j = -1
sum = 0
while i < 99:
    i +=1
    if i==88:
        continue
    else:
        j = -j
        sum=sum+i * j
print(sum)

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转载自www.cnblogs.com/ppystudy/p/12092955.html