请帮我写一个脚本：将yolo格式的txt文件转成xml格式，其中类别为0：ztc 1：wjj 2：snc 3:td 4:ttc

好的，以下是一个将YOLO格式的标签文件转换为XML格式的脚本，其中类别为0：ztc 1：wjj 2：snc 3:td 4:ttc。请将脚本保存为.py文件，然后在命令行中运行。

import os
import xml.etree.ElementTree as ET

# Define the class names
CLASS_NAMES = ["ztc", "wjj", "snc", "td", "ttc"]

def convert_yolo_to_xml(yolo_file, output_dir):
    # Open the YOLO format file and read each label line
    with open(yolo_file) as f:
        labels = f.readlines()

    # Create the root XML element
    root = ET.Element("annotation")

    # Create the child elements and add them to the root element
    filename = os.path.splitext(os.path.basename(yolo_file))[0] + ".jpg"
    ET.SubElement(root, "filename").text = filename
    size = ET.SubElement(root, "size")
    ET.SubElement(size, "width").text = "416"
    ET.SubElement(size, "height").text = "416"
    ET.SubElement(size, "depth").text = "3"

    # Loop over each label and add it to the XML file
    for label in labels:
        label_parts = label.strip().split()
        label_name = CLASS_NAMES[int(label_parts[0])]
        x_center = float(label_parts[1])
        y_center = float(label_parts[2])
        width = float(label_parts[3])
        height = float(label_parts[4])
        left = int((x_center - width / 2) * 416)
        top = int((y_center - height / 2) * 416)
        right = int((x_center + width / 2) * 416)
        bottom = int((y_center + height / 2) * 416)

        object_element = ET.SubElement(root, "object")
        ET.SubElement(object_element, "name").text = label_name
        bbox = ET.SubElement(object_element, "bndbox")
        ET.SubElement(bbox, "xmin").text = str(left)
        ET.SubElement(bbox, "ymin").text = str(top)
        ET.SubElement(bbox, "xmax").text = str(right)
        ET.SubElement(bbox, "ymax").text = str(bottom)

    # Write the XML file to disk
    xml_file = os.path.join(output_dir, os.path.splitext(os.path.basename(yolo_file))[0] + ".xml")
    tree = ET.ElementTree(root)
    tree.write(xml_file)

使用时，只需要将YOLO格式的标签文件路径和输出目录路径作为参数传递给convert_yolo_to_xml函数即可。例如：

convert_yolo_to_xml("path/to/label.txt", "path/to/output/dir")

注意，此脚本假设YOLO格式的标签文件中的坐标是相对于图像宽度和高度的百分比，因此需要将它们转换为像素坐标。此外，如果YOLO格式的标签文件中的类别编号与CLASS_NAMES列表中定义的顺序不同，则需要相应地修改代码。