'commit'

dsRag/Neo4j/TestNeo4j2.py

@@ -3,6 +3,11 @@ from py2neo import Graph, Node, Relationship
 # 1. 连接Neo4j数据库
 graph = Graph("bolt://localhost:7687", auth=("neo4j", "DsideaL147258369"))
 
+# 清空数据库
+graph.delete_all()
+print("数据库已清空")
+
+
 # 2. 创建化学物质节点 (三种反应物+一种生成物)
 reactant_A = Node("Chemical", name="铁", formula="Fe")
 reactant_B = Node("Chemical", name="氧气", formula="O2")
@@ -17,12 +22,12 @@ reaction = Node("Reaction",
 )
 
 # 4. 建立反应物与反应的关系（带计量系数属性）
-rel_A = Relationship(reactant_A, "PARTICIPATES_IN", reaction, coefficient=4)
-rel_B = Relationship(reactant_B, "PARTICIPATES_IN", reaction, coefficient=3)
-rel_C = Relationship(reactant_C, "PARTICIPATES_IN", reaction, coefficient=6)
+rel_A = Relationship(reactant_A, "参与反应", reaction, coefficient=4)
+rel_B = Relationship(reactant_B, "参与反应", reaction, coefficient=3)
+rel_C = Relationship(reactant_C, "参与反应", reaction, coefficient=6)
 
 # 5. 建立反应与生成物的关系
-rel_product = Relationship(reaction, "PRODUCES", product, yield_rate="98%")
+rel_product = Relationship(reaction, "生成", product, yield_rate="98%")
 
 # 6. 将节点和关系提交到数据库
 graph.create(reactant_A)
@@ -44,4 +49,4 @@ result = graph.run(query)
 
 for record in result:
     print(f"化学物质: {record['chemical']}, 计量系数: {record['coefficient']}")
-print(f"反应方程式: {record['equation']}")
+    print(f"反应方程式: {record['equation']}")