旧版本用这个
boxes = [line[0] for line in result] txts = [line[1][0] for line in result]
新版本用这个
boxes = [line[0] for line in result[0]] txts = [line[1][0] for line in result[0]]
boxes = [line[0] for line in result[0]]
txts = [line[1][0] for line in result[0]]
