python - 基础算法题4 - 计算1-2+3-4...-100

count=1
middle=1
while count<=100:
    if count%2==0:
        middle=-1
    else:
        middle=1
    count++
    sum+=(middle*count)
print(sum)

 

转载于:https://www.cnblogs.com/bigbigbird/p/11170877.html