1. 首先启动neo4j

./neo4j console

2. 连接数据库

from py2neo import Graph, Node, Relationship

graph = Graph("http://localhost:7474", auth=("neo4j", "xxxxxxx"))
# graph.delete_all()  # 删除已有的所有内容

3. 添加节点

node1 = Node('Person', name='Bob')
graph.create(node1)
node2 = Node('Person', name='Alice')
graph.create(node2)
node3 = Node('animal', name='cat')
graph.create(node3)
node4 = Node('animal', name='dog')
graph.create(node4)

4. 添加关系

r1 = Relationship(node2, 'know', node1)
r2 = Relationship(node1, 'know', node3)
r3 = Relationship(node2, 'has', node3)
r4 = Relationship(node4, 'has', node2)
graph.create(r1)
graph.create(r2)
graph.create(r3)
graph.create(r4)