save project

diy2.py

 username = "python"
 userpassword = "123456"
+i = 3
 while True:
-    Q = input("输入账户：")
-    A = input("输入密码：")
-    if username == Q and userpassword == A:
-        print("登陆成功")
-        break
-    elif username != Q:
-        print("用户名输入有误，请重新输入")
+    if i>0:
+        Q = input("输入账户：")
+        A = input("输入密码：")
+        i-=1
+        if username == Q and userpassword == A:
+            print("登陆成功")
+            break
+        elif username != Q:
+            print("用户名输入有误，请重新输入")           
+        else:
+            print("密码输入有误，请重新输入")
     else:
-        print("密码输入有误，请重新输入")
+        print("您的账户已被锁定，请带身份证来我司解锁")
+        exit()
 print("欢迎来到贝尔编程！") 
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