How to login wechat on your desktop?

How to login wechat on your desktop?
enter wx.qq.com in your browser on desktop
then click + at top right of wechat interface on your phone, select Scan QR code, aim at the QR code on your desktop screen
then your desktop will log into your wechat account

how to logout your wechat account from desk top?
click the down arrow beside your name at top of the left panel, click "Log out"