python读写txt标注文件

读取txt标注文件：

# 打开文件
with open("标注文件.txt", "r") as f:
    lines = f.readlines()

annotations = []
for line in lines:
    # 分割每行
    parts = line.split()
    # 获取标注信息
    annotation = {
        "filename": parts[0],
        "xmin": int(parts[1]),
        "ymin": int(parts[2]),
        "xmax": int(parts[3]),
        "ymax": int(parts[4]),
        "class": parts[5]
    }
    annotations.append(annotation)

写入txt标注文件：

annotations = [
    {
        "filename": "image1.jpg",
        "xmin": 10,
        "ymin": 20,
        "xmax": 100,
        "ymax": 200,
        "class": "car"
    },
    {
        "filename": "image2.jpg",
        "xmin": 50,
        "ymin": 100,
        "xmax": 200,
        "ymax": 300,
        "class": "person"
    }
]

# 打开文件
with open("标注文件.txt", "w") as f:
    for annotation in annotations:
        # 构造每行内容
        line = "{} {} {} {} {} {}\n".format(annotation["filename"], annotation["xmin"], annotation["ymin"], annotation["xmax"], annotation["ymax"], annotation["class"])
        # 写入文件
        f.write(line)