Time: 7/27/2019
Pre： Cos of my fault that I reset the password unintentionally and did't remember the password,I had to reinstall the system.
Tool: raspberrypi 3b+ ,windows10
Let's begin.
step1:Go to the offical web and download the offical system and extra.
https://www.raspberrypi.org/downloads/raspbian/
step2:Dowload SD Memory Card formatter.
https://www.sdcard.org/chs/downloads/index.html
step3:Download the etchar.Import the respberrypi system into it.
the compression packet refer to the decompressing file.
step4: Insert sd to the hardware, set some preference.
step5: update your raspberrypi
sudo apt-get update
sudo apt-get upgrade
Here ,I firmlly suggest don't change the source to domestic college source.Just use the default source.You can change the network frequently,but not change the source to mirror.
Install Chinese input method
sudo apt-get install scim-pinyin
scim
Reboot system.