Traceback (most recent call last): File "E:\Duzhuan\anaconda\lib\site-packages\IPython\core\interactiveshell.py", line 3460, in run_code exec(code_obj, self.user_global_ns, self.user_ns) File "<ipython-input-2-f50cabd6c39d>", line 1, in <module> runfile('C:\\Users\\zhangxiao\\Desktop\\Algorithm Integration\\d.py', wdir='C:\\Users\\zhangxiao\\Desktop\\Algorithm Integration') File "E:\Duzhuan\JetBrainsPyCharm 2023.1\PyCharm 2023.1\plugins\python\helpers\pydev\_pydev_bundle\pydev_umd.py", line 198, in runfile pydev_imports.execfile(filename, global_vars, local_vars) # execute the script File "E:\Duzhuan\JetBrainsPyCharm 2023.1\PyCharm 2023.1\plugins\python\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile exec(compile(contents+"\n", file, 'exec'), glob, loc) File "C:\Users\zhangxiao\Desktop\Algorithm Integration\d.py", line 198, in <module> main() File "C:\Users\zhangxiao\Desktop\Algorithm Integration\d.py", line 187, in main draw_node_distribution(sensor_nodes_before, sensor_nodes_after) NameError: name 'sensor_nodes_before' is not defined

非常抱歉，之前的回答中出现了错误。在 `main` 函数中，我们需要定义 `sensor_nodes_before` 和 `sensor_nodes_after` 变量，并将其作为参数传递给 `draw_node_distribution` 函数。请将以下代码添加到你的实现中以解决这个问题：

def main():
    # 其他代码...

    # 定义 sensor_nodes_before 和 sensor_nodes_after 变量
    sensor_nodes_before = []  # 替换为你的节点列表
    sensor_nodes_after = []  # 替换为你的节点列表

    # 绘制节点分布图
    draw_node_distribution(sensor_nodes_before, sensor_nodes_after)

    # 其他代码...

在上述代码中，我们创建了两个空的列表 `sensor_nodes_before` 和 `sensor_nodes_after`，你需要将其替换为你实际的节点列表。确保在调用 `draw_node_distribution` 函数时传递正确的参数。

请将上述代码添加到你的实现中，并再次运行。如果还有其他问题，请随时提问。非常抱歉给你带来的困扰！