​​https://www.jianshu.com/p/bfb081a96337​​

​​https://www.jianshu.com/p/d9c1269baba6​​

​​https://www.jianshu.com/p/4d947feed534​​

​​http://www.54manong.com/?id=891​​

​​http://blog.hubwiz.com/2019/07/07/Hyperledger-fabric-chaincode-event/​​