我的新书《大话区块链》现在京东有官方预售了

Congratulations @yingpingzhang! You have completed the following achievement on the Steem blockchain and have been rewarded with new badge(s) :

<table><tr><td><img src="https://images.hive.blog/768x0/https://steemitimages.com/60x70/http://steemitboard.com/@yingpingzhang/comments.png?201910031409" srcset="https://images.hive.blog/768x0/https://steemitimages.com/60x70/http://steemitboard.com/@yingpingzhang/comments.png?201910031409 1x, https://images.hive.blog/1536x0/https://steemitimages.com/60x70/http://steemitboard.com/@yingpingzhang/comments.png?201910031409 2x" /><td>You made more than 900 comments. Your next target is to reach 1000 comments. <p dir="auto"><sub><em>You can view <a href="https://steemitboard.com/@yingpingzhang" target="_blank" rel="noreferrer noopener" title="This link will take you away from hive.blog" class="external_link">your badges on your Steem Board and compare to others on the <a href="https://steemitboard.com/ranking/index.php?name=yingpingzhang" target="_blank" rel="noreferrer noopener" title="This link will take you away from hive.blog" class="external_link">Steem Ranking<br /> <sub><em>If you no longer want to receive notifications, reply to this comment with the word <code>STOP <p dir="auto">To support your work, I also upvoted your post! <h6><a href="https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1" target="_blank" rel="noreferrer noopener" title="This link will take you away from hive.blog" class="external_link">Vote for @Steemitboard as a witness to get one more award and increased upvotes!