#简单

def narcissus():

for n in range(100, 1000, 1):

a, b, c = n//100, (n//10)%10, (n%100)%10

if a ** 3 + b ** 3 + c ** 3 == n:

print(n)

#使用yield写法

def narcissus_yield():

m, n = 100, 999

while m <= n:

a, b, c = m // 100, (m // 10) % 10, (m % 100) % 10

if a ** 3 + b ** 3 + c ** 3 == m:

yield m

m = m + 1

#包含水仙花等。。。

def narcissus_all(min, max):

if type(min) != int or type(max) != int:

msg = "参数类型必须为int"

raise TypeError(msg)

if min is None or max is None:

msg = "参数值不能为None!!!"

raise ValueError(msg)

if max == 0 or max < min:

msg = "max不能为0或者max必须比min值大"

raise ValueError(msg)

length = len(str(max))

while min <= max:

temp_val, sum = min, 0

for n in range(length):

sum += (temp_val%10) ** length

temp_val //= 10

if min == sum:

yield min

min = min + 1

for n in narcissus_all(100000, 999999):

print(n)