For the sake of safety, it's best to sign it specially. Under normal circumstances, you are not allowed to get a driver's license without signing it. Signing is to prove that you have passed the subject four exam, and to verify the list reported in the system and the list of driver's licenses. In the driving school group, the coach asked the students who forgot their signatures after the exam to return their signatures to confirm the information. 12 123 will show that the result is qualified, because it is the same as the machine. If it passes through the computer on the machine, the system will upload it automatically, and you still need to sign the manual check information.