1.編程實現 9*9乘法表(循環嵌套的複習)
2.平方等式
def f(n):
n = str(n)
sum = 0
for item in n:
sum += int(item) ** 2
return sum
def isOK(k, n):
if k * f(n) == n:
return True
else:
return False
def main():
k = 51
a = 5000
b = 10000
count = 0
for i in range(a, b + 1):
if isOK(k, i):
count += 1
print(count)
main()
執行效果: