save project

diy1.py

@@ -7,6 +7,9 @@ while True:
         print('登录成功')
         print('登录成功')
     if username!=username1:
     if username!=username1:
         print('用户名不存在,请重新输入')
         print('用户名不存在,请重新输入')
+        continue
     if userpassword!=userpassword1:
     if userpassword!=userpassword1:
         print('密码错误，请重新输入')
         print('密码错误，请重新输入')
+
+    
     
     
\ No newline at end of file