python三个数取最大值 python三个数中的最大值

#判断三个数中最大值
n1= int(input('please enter the firest number:'))
n2 = int(input('please enter the second number:'))
n3 = int(input('please enter the third number:'))
max_num = 0

if n1 > n2:
    max_num = n1
    if n1 > n3:
        max_num = n1
    else:
        max_num = n3
else:
    max_num = n2
    if n2 > n3:
        max_num = n2
    else:
        max_num = n3
print('the max_num is：%d'%max_num)

'''

if n1>n2:
max_num = n1
    if max_num > n3:
        print('the max_num is n1')
    else:
        print('the max_num is n3')
else:
    max_num = n2
    if max_num > n3:
        print('the max_num is n2')
    else:
        print('the max_num is n3')
'''