copy 你的Launcher目录\product\phone\build\default\outputs\default\phone-launcher-default-signed.hap Launcher.hap
copy 你的Launcher目录\feature\settings\build\default\outputs\default\launcher_settings-phone-launcher-default-signed.hap Launcher_Settings.hap

hdc shell mount -o remount,rw /
hdc shell rm -rf /data/*

hdc file send .\Launcher.hap /system/app/com.ohos.launcher/Launcher.hap
hdc file send .\Launcher_Settings.hap /system/app/com.ohos.launcher/Launcher_Settings.hap

hdc shell reboot
pause