save project

diy2.py

 username = "python"
 userpassword = "123456"
+i=-1
 while True:
+    i = 0
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
@@ -8,7 +10,12 @@ while True:
         break
     if name != username:
         print("用户名错") 
+        i=1+1
         continue
     if password != username:
         print("密码错")
+        i=i+1
+    else:
+       print("没了!") 
+        exit()
     print("欢迎来到贝尔编程!")
\ No newline at end of file