save project

diy1.py

+i=3
 username = "python"    
 username = "python"    
 userpassword = "123456"    
 userpassword = "123456"    
 while True:
 while True:
+    if i>0:
         name = input("用户名")
         name = input("用户名")
         password = input("密码")
         password = input("密码")
+        i-=1
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("成功") 
             print("成功") 
             break
             break
@@ -11,6 +14,9 @@ while True:
             continue
             continue
         if password != userpassword:        
         if password != userpassword:        
             print("密码错误，重新输入")
             print("密码错误，重新输入")
+    else:
+        print("锁定")
+        exit()
 print("欢迎") 
 print("欢迎")