这是一个NoSql数据库，适合处理复杂的，但是结构化低的数据,适用于社交网络，推荐系统等。
安装：
go get -u -v github.com/cayleygraph/cayley/cmd/cayley/是安装不成功的。
If your version of Go < 1.13, you need to run:
export GO111MODULE=on
(在当前目录下，会生成可执行文件cayley)
./cayley -h
参考https://cayley.gitbook.io/cayley/contributing
项目地址： https://github.com/cayleygraph/cayley
安装：
go get -u -v github.com/cayleygraph/cayley/cmd/cayley/是安装不成功的。
If your version of Go < 1.13, you need to run:
export GO111MODULE=on
git clone https://github.com/cayleygraph/cayley
cd cayley
# download dependencies
go mod download
go build ./cmd/cayley/(在当前目录下，会生成可执行文件cayley)
./cayley -h
参考https://cayley.gitbook.io/cayley/contributing
项目地址： https://github.com/cayleygraph/cayley