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# -*- coding: UTF-8 -*-__author__ = 'zy'__time__ = '2020/12/29 11:18'# coding:utf-8from py2neo import Graph, Node, Relationship##连接neo4j数据库，输入地址、用户名、密码graph = Graph('http://39.97.100.242:7474', username='neo4j', password='neo4j/mysql')##创建结点test_node_1 = Node(label='ru_yi_zhuan', name='皇帝')test_node_2 = Node(label='ru_yi_zhuan', name='皇后')test_node_3 = Node(label='ru_yi_zhuan', name='公主')graph.create(test_node_1)graph.create(test_node_2)graph.create(test_node_3)##创建关系# 分别建立了test_node_1指向test_node_2和test_node_2指向test_node_1两条关系，关系的类型为"丈夫、妻子"，两条关系都有属性count，且值为1。node_1_zhangfu_node_1 = Relationship(test_node_1, '丈夫', test_node_2)node_1_zhangfu_node_1['count'] = 3node_2_qizi_node_1 = Relationship(test_node_2, '妻子', test_node_1)node_2_munv_node_1 = Relationship(test_node_2, '母女', test_node_3)node_2_qizi_node_1['count'] = 1graph.create(node_1_zhangfu_node_1)graph.create(node_2_qizi_node_1)graph.create(node_2_munv_node_1)print(graph)print(test_node_1)print(test_node_2)print(node_1_zhangfu_node_1)print(node_2_qizi_node_1)print(node_2_munv_node_1)#CREATE (emp:Employee{id:123,name:"Lokesh",sal:35000,deptno:10})# CREATE (#    
   
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     #    {#       
     
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       #       ........#       
       
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         # }# )# MATCH (
         
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           )# MATCH (p:Employee {name:"Lokesh"}) RETURN p# MATCH (e:Customer)# RETURN e.id,e.name,e.dob# MATCH (name:Dept)# RETURN name.deptno# CREATE (
           
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             )-# [(
             
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               )]# ->(
               
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                 )# CREATE (dept:Dept { deptno:10,dname:"Accounting",location:"Hyderabad" })# CREATE (dept:Dept)-[r1:LIKES]->(dept2:Dept)#CREATE (dept:Dept { deptno:10,dname:"Accounting",location:"Hyderabad" })# MATCH (emp:Employee)# WHERE emp.name = 'Abc'# RETURN emp# MATCH (e: Employee) DELETE e# DELETE 
                 
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                    # MATCH (cc: CreditCard)-[rel]-(c:Customer)# DELETE cc,c,rel# MATCH (e: Employee) DELETE e#全部删除#WHERE emp.name = 'Abc'#部分删除# MATCH (e: Employee) RETURN e## MATCH (e:wuhan)# WHERE e.happy ='4'# delete e
                   
                  
                 
                
               
              
             
            
           
          
         
        
       
      
     
    
   

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