python循环相关联系

黎子越2026-01-25 10:14

1、

python 复制代码

sum = 0
for i in range(1,100):
    sum += 1/i
print(sum)

2、

python 复制代码

sum = 0
f = 1
for i in range(1,101):
    sum = sum + 1/i*f
    f = -f
print(sum)

3、

python 复制代码

sum = 0
t = 0
for i in range(1,101):
    t = t + i
    sum = sum + 1/t
print(sum)

4、

python 复制代码

a = 2
sum = 0
for i in range(6):
    sum += a
    a = a*10 +2
print(sum)

5、

python 复制代码

sum = 1
t = 1
i =1
while 1/t > 1e-6:
    t = t * i
    sum = sum + 1/t
    i += 1
print(sum)

6、

python 复制代码

sum = 1
f  = -1
i = 3
while 1/i > 1e-6:
    sum = sum + 1 / i * f
    i += 2
    f = -f
print(4*sum)