How to change the phone number displayed in the mobile phone status message?

we can set our own "local number" with the help of the function machine, and the set information is saved in the SIM card, not on the mobile phone. Take the SIM card off the Android phone and put it in the function machine. The functions of the function phones are basically the same, so the setting method is basically the same-"Phone Book-Options-Phone Book Settings-Local Number". Edit your mobile phone number in "Local Number" and save it. Take off the SIM card and put it back on the Android phone. Check the "local phone number" again-(successful! ) Create your own number in Contacts and set your avatar. So it can be displayed in the SMS interface.