python基础计算！

Question

计算 s=1−1/2+1/3−1/4+…+1/99−1/100
用for循环

Answer 1

result = 0
for i in range(1,101):
    if i%2==0:
        result  = result - 1/i
    else:
        result  = result + 1/i
print(result)