python读取txt文件,并以文件中数字作为节点,绘制完全二叉树图
时间: 2024-05-03 08:21:35 浏览: 98
这个任务需要使用Python中的一些库来完成。我们将使用以下库:
1. matplotlib:用于绘制图形。
2. networkx:用于创建和操作图形。
3. numpy:用于处理数字数据。
首先,我们需要从文本文件中读取数字数据。我们可以使用Python内置的文件操作功能来读取文件。以下是读取文件并将数据存储在列表中的代码:
```
with open('data.txt', 'r') as f:
data = f.readlines()
data = [int(x.strip()) for x in data]
```
现在我们有了一个包含所有数字数据的列表。接下来,我们需要创建一个完全二叉树。我们可以使用networkx库来创建和操作图形。以下是创建完全二叉树的代码:
```
import networkx as nx
def create_tree(data):
G = nx.Graph()
G.add_node(data[0])
for i in range(1, len(data)):
G.add_node(data[i])
G.add_edge(data[(i-1)//2], data[i])
return G
tree = create_tree(data)
```
现在我们有了一个完全二叉树。接下来,我们需要绘制这棵树。我们可以使用matplotlib库来绘制图形。以下是绘制完全二叉树的代码:
```
import matplotlib.pyplot as plt
pos = nx.nx_agraph.graphviz_layout(tree, prog='dot')
nx.draw(tree, pos, with_labels=True, node_size=500)
plt.show()
```
这将显示完全二叉树的图形。完整代码如下:
```
import networkx as nx
import matplotlib.pyplot as plt
with open('data.txt', 'r') as f:
data = f.readlines()
data = [int(x.strip()) for x in data]
def create_tree(data):
G = nx.Graph()
G.add_node(data[0])
for i in range(1, len(data)):
G.add_node(data[i])
G.add_edge(data[(i-1)//2], data[i])
return G
tree = create_tree(data)
pos = nx.nx_agraph.graphviz_layout(tree, prog='dot')
nx.draw(tree, pos, with_labels=True, node_size=500)
plt.show()
```
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