像这样的xml文件，我们可以通过代码批量转换为txt文件格式：

新建一个xml2txt.py文件，

        上代码，直接复制粘贴

import xml.etree.ElementTree as ET
import osdef convert(size, box):x_center = (box[0] + box[1]) / 2.0y_center = (box[2] + box[3]) / 2.0x = x_center / size[0]y = y_center / size[1]w = (box[1] - box[0]) / size[0]h = (box[3] - box[2]) / size[1]return (x, y, w, h)def convert_annotation(xml_files_path, save_txt_files_path, classes):xml_files = os.listdir(xml_files_path)print(xml_files)for xml_name in xml_files:print(xml_name)xml_file = os.path.join(xml_files_path, xml_name)out_txt_path = os.path.join(save_txt_files_path, xml_name.split('.')[0] + '.txt')out_txt_f = open(out_txt_path, 'w')tree = ET.parse(xml_file)root = tree.getroot()size = root.find('size')w = int(size.find('width').text)h = int(size.find('height').text)for obj in root.iter('object'):difficult = obj.find('difficult').textcls = obj.find('name').textif cls not in classes or int(difficult) == 1:continuecls_id = classes.index(cls)xmlbox = obj.find('bndbox')b = (float(xmlbox.find('xmin').text), float(xmlbox.find('xmax').text),float(xmlbox.find('ymin').text), float(xmlbox.find('ymax').text))bb = convert((w, h), b)out_txt_f.write(str(cls_id) + " " + " ".join([str(a) for a in bb]) + "\n")out_txt_f.close()if __name__ == '__main__':classes1 = ['x']xml_files1 = r' 'save_txt_files1 = r' 'convert_annotation(xml_files1, save_txt_files1, classes1)

修改以下代码即可：

1. 标签名

    classes1 = ['x', 'y', 'z'] 

2. xml文件所在位置

    xml_files1 = r'C:\Users\Administrator\Desktop\data\xml'

3. txt文件导出位置

    save_txt_files1 = r'C:\Users\Administrator\Desktop\data\txt'