save project

diy1.py

@@ -7,8 +7,9 @@ while True:
     if a==username and b==userpassword:
         break
     print('输入错误')
-    if not name !=username:
+    if not a !=username:
         print('账号错误')
-    if not name !=userpassword:
+        continue
+    if not b !=userpassword:
         print('密码错误')
 print('欢迎来到贝尔编程')