一道简单的python编程？ 一道简单的python编程题目
def demo(m, n):
for ji in range(1, m + 1):
tu = m - ji
if ji * 2 + tu * 4 == n:
return (ji, tu)
else:
return (-1, -1)
m, n = input('输入鸡兔数，脚数：').split(',')
if demo(int(m), int(n)) == (-1, -1):
print('输入数据出错！')
else:
print('%d只鸡，%d只兔。' % demo(int(m), int(n)))
代码(缩进格式见图)：
def demo(m,n):
for i in range(0,m+1):
if 4*m-2*i==n:
return i,m-i
return -1,-1
print('输入鸡兔数，脚数：')
m,n=map(int,input().strip().split(','))
j,t=demo(m,n)
if j!=-1:
print(f'{j}只鸡，{t}只兔。')
else:
print('输入数据出错！')
运行截图：
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