12-28 day5 作业

2018-12-28  本文已影响0人  ychaochaochao
简单.png
sum = 0  #存储和的变量
ave = 0  #存储平均值的变量
for x in range(1,101):
  sum+=x
ave = sum/len(range(1,101))
print(sum,ave)
sum = 0  #存储和的变量
ave = 0  #存储平均值的变量
x=1
while x<=100:
    sum+=x
    x+=1
ave = sum / len(range(1, 101))
print(sum,ave)
sum = 0  #存储和的变量
for x in range(1,101):
  if x % 3 == 0:
      sum += x
print(sum)
sum = 0  #存储和的变量
x=1
while x<=100:
    if x % 3 == 0:
        sum += x
    x+=1
print(sum)
sum = 0  #存储和的变量
for x in range(1,101):
  if x % 7 != 0:
      sum += x
print(sum)
sum = 0  #存储和的变量
x=1
while x<=100:
    if x % 7 != 0:
        sum += x
    x+=1
print(sum)
稍难.png

1.求斐波那契数列列中第n个数的值:1,1,2,3,5,8,13,21,34....

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