Python Day-1 练习

作业1

要求：1.输入用户密码

2.认真成功后显示欢迎信息

3.输入三次锁定

代码如下：

__author__ = 'zhang.ning'
username = "zhangning"
password = ""
for i in  range():
    input_username = raw_input("Please your name:")
    input_password = raw_input("Please your password:")
    if (input_username == username and input_password == password ):
        print("welcome to centos world.")
        break
    else:
        print("have a try!")
else:
    print("Too many retrys !")