1. Uso de Neo4j-CQL
1.1 Introducción a Neo4j-CQL
使用cypher语言来描述关系：
(fox)<-[:knows]-(诸葛)<-[:knows]-(周瑜)-[:knows]->(fox)
(nodo) [:relación]
1.2 CRUD
①增：
增加一个节点：create(n:Person{name:'我',age:21})
带有关系属性：create(p:Person{name:'我',age:21})-[:子女{关系:'女儿'}]->(n:Person{name:'张华军',age:48})
②删
删节点：match(n:zmjPerson{name:'张梦姣'})delete n
删关系：match (p:zmjPerson{name:'张梦姣',age:21})-[f:子女]->(n:zmjPerson{name:'张华军'})delete f,n
③改
添加标签：match (n:zmjPerson) where id(n)=44166 set n:父亲 return n
添加属性：match (n:zmjPerson) where id(n)=44166 set n.sex='男' return n
修改属性：match (n:zmjPerson) where id(n)=44166 set n.age='50' return n
④查（查操作太多了，直接参考neo4j例子就好）
match (p:zmjPerson)-[f:子女]->(n:zmjPerson) return p,n,f
⑤快速删除数据库
match (n) detach delete n
