save project

diy2.py

-i=3
 username = "python"
 userpassword = "123456"
 while True:
-    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("登录成功!")
         break
-    if name != username:
+    elif expression:
+        pass name != username:
         print("mzzw")
-        print("温馨提示：您还有"str(i)+"次登录机会")
         continue
-    if password != userpassword:
+    else password != userpassword:
         print("mazw")
-        print("温馨提示：您还有"str(i)+"次登录机会")
-    exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file