git主-分切换提交

1349 git status
1350 git diff
1351 git add apps/private/ctc-gdbus/ctc_igd1_dbus/src/igd1_obj/obj_network_ddns_i.c
1352 git commit -m "[DBUS] add DDNSProvider nodename"
1353 git branch
1354 git push origin ddns
1355 git checkout master q
1356 git checkout master
1357 git pull
1358 git branch
1359 git checkout ddns
1360 git checkout master
1361 history