使用py2neo建立配电图关系
时间: 2024-05-12 16:19:45 浏览: 111
首先,我们需要安装py2neo。
```python
!pip install py2neo
```
然后,我们可以使用以下代码来建立配电图关系。假设我们有以下节点:
- 电站(PowerPlant)
- 变电站(Substation)
- 高压线路(HighVoltageLine)
- 中压线路(MediumVoltageLine)
- 低压线路(LowVoltageLine)
我们需要建立以下关系:
1. 电站包含变电站(PowerPlant包含Substation)
2. 变电站连接高压线路(Substation连接HighVoltageLine)
3. 高压线路连接变电站和中压线路(HighVoltageLine连接Substation和MediumVoltageLine)
4. 中压线路连接高压线路和低压线路(MediumVoltageLine连接HighVoltageLine和LowVoltageLine)
首先,我们需要导入py2neo:
```python
from py2neo import Graph, Node, Relationship
```
然后,我们需要建立一个连接到Neo4j数据库的对象:
```python
graph = Graph(password="yourpassword")
```
接下来,我们可以创建节点:
```python
power_plant = Node("PowerPlant", name="Power Plant A")
substation = Node("Substation", name="Substation 1")
high_voltage_line = Node("HighVoltageLine", name="High Voltage Line 1")
medium_voltage_line = Node("MediumVoltageLine", name="Medium Voltage Line 1")
low_voltage_line = Node("LowVoltageLine", name="Low Voltage Line 1")
```
然后,我们可以使用以下代码来创建关系:
```python
power_plant_substation = Relationship(power_plant, "包含", substation)
substation_high_voltage_line = Relationship(substation, "连接", high_voltage_line)
high_voltage_line_medium_voltage_line = Relationship(high_voltage_line, "连接", medium_voltage_line)
medium_voltage_line_low_voltage_line = Relationship(medium_voltage_line, "连接", low_voltage_line)
graph.create(power_plant_substation)
graph.create(substation_high_voltage_line)
graph.create(high_voltage_line_medium_voltage_line)
graph.create(medium_voltage_line_low_voltage_line)
```
这将在Neo4j数据库中创建节点和关系。您可以使用Cypher查询语言来查询和操作这些节点和关系。
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