save project

diy2.py

-username = "python"
-userpassword = "123456"
+i=3
+a = "python"
+b = "123456"
 while True:
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
+    if i>0:
+        aa = input("账号")
+        bb = input("密码")
+        i-=1
+        if a == aa and b == bb:
+            print("登录成功")
             break
             break
-    if name != username:
-        print('账号错误，请重新输入')
-    if password != userpassword:
-        print('密码错误，请重新输入')
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+        if a != aa:
+            print("用户名错误，请重新输入！")
+            continue
+        if b != bb:
+            print("密码错误，请重新输入！")
+    else:
\ No newline at end of file
+        print("账户已锁定！")
+        exit()
\ No newline at end of file