获取composer-cli、composer-rest服务器、composer游乐场版本的ibmhyperledger结构的方法是什么？
您可以按照安装文档https://console.bluemix.net/docs/services/blockchain/develop_install.html#installing-a-开发环境
对于Hyperledger Fabric v1.21:
- npm安装composer-cli@0.20.x
- npm安装composer-rest-server@0.20.x
- npm安装generator-hyperledger-composer@0.20.x
- npm安装composer-playground@0.20.x