How to Login Automatically in PI3

The question is that I don’t want to input the account and password whenever the PI reboot.It is boring and I have to connect the PI with a monitor.But many solutions on the Internet is to edit the file of /etc/inittab and it is outdated,useless in PI3 I am using.
So How to fix this problem?well,I have find the way,input:

raspi-config

choose Boot Options,and in here you can find the option like logging in with the account of PI(I forget the name of the option,but the same meaning~) ,then reboot and it is OK now~You don’t need the monitor anymore and can just login with ssh.