十进制使用十个数字：0到9。

The decimal system uses ten digits: 0 to 9.

按上查、下查键可设置或修改为0到9，完成第一位设置后，按设置键进入第二位设置，以此类推。

According to the investigation, under the search button can be set or modify the 0 to 9, after the completion of the first one is set, press Set button to enter the second set, and so on.