# while 循环
age = 56count = 0
while count < 3 :
    guess_age=int(input('输入年龄：'))
    if guess_age == age:
        print('猜到了')
        break
    elif guess_age > age:
        print('猜大了')
    else:
        print('猜小了')
    count +=1
    if count==3:
        shuru=input('还玩吗（Y/N）')
        if shuru != 'n':
            count =0
else:
    print('以输入3次，告辞') '''

#从0开始循环，最大到10，步数是2
for i in range(0,10,2):
    print(i)


for i in range(10):
    print('---',i)
    for j in range(10):
        print(j)
        if j >5:
            break

学习无止境，加油