Welcome to Steem Community @liangfengyouren! As a gentle reminder, please keep your master password safe. The best practise is to use your private posting key to login to Steemit when posting; and the private active key for wallet related transactions.

In the New Steemians project, we help new members of steem by education and resteeeming their articles. Get your articles resteemed too for maximum exposure. You can learn more about it here: https://steemit.com/introduceyourself/@gaman/new-steemians-project-launch