save project

1.py

-username
\ No newline at end of file
+i=3
+username="python"
+userpassword="123456789"
+while True:
+    if i>0:
+        name=input("请输入用户名：")
+        password=input("请输入密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功")
+            break
+        if name!=username:
+            print("用户名错误，请重新输入！")
+            continue
+        if password !=userpassword:
+            print("密码输入错误，请重新输入!")
+    else:
+        print("你的账号已被锁定，请一个小时以后再来！")
+        exit()
+print("欢迎来到贝尔编程") 
\ No newline at end of file