save project

bug.py

 username="python"
 username="python"
 userpassword="123456"
 userpassword="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("登陆成功")
-        break
-    elif  name != username:
-        print("用户名不存在，请重新输入！")
-        
-    else password != userpassword 
-        print("密码输入有误，请重新输入！")  
-    print("用户名密码错误！请重新输入")
+    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("登陆成功")
+            break
+        if name != username:
+            print("用户名不存在，请重新输入！")
+            continue
+        if password != userpassword 
+            print("密码输入有误，请重新输入！")  
+    else:        
+    print("你的账户已被锁定，请一个小时之后再来")
+    exit()
 print("欢迎来到贝尔编程")    
 print("欢迎来到贝尔编程")    
\ No newline at end of file