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 124, in <module> main() File "C:\Users\zhangxiao\Desktop\Algorithm Integration\d.py", line 113, in main draw_node_distribution(sensor_nodes) NameError: name 'draw_node_distribution' is not defined

抱歉，之前的伪代码中缺少了绘制节点分布图的函数 `draw_node_distribution` 的定义。以下是一个简单的示例实现该函数的代码：

import matplotlib.pyplot as plt

def draw_node_distribution(sensor_nodes):
    x_unknown = []
    y_unknown = []
    x_anchor = []
    y_anchor = []

    for node in sensor_nodes:
        if node.node_type == "unknown":
            x_unknown.append(node.x)
            y_unknown.append(node.y)
        elif node.node_type == "anchor":
            x_anchor.append(node.x)
            y_anchor.append(node.y)

    plt.scatter(x_unknown, y_unknown, color='blue', label='Unknown Nodes')
    plt.scatter(x_anchor, y_anchor, color='red', label='Anchor Nodes')
    plt.xlabel('X')
    plt.ylabel('Y')
    plt.title('Node Distribution')
    plt.legend()
    plt.show()

# 主函数
def main():
    # 其他代码...

    # 绘制节点分布图
    draw_node_distribution(sensor_nodes)

    # 其他代码...

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！