python: .pkl文件读写

PKL_PATH = '\you\path'

string = ''

if os.path.isfile(PKL_PATH):

    # pkl文件内容被一次性读入data
    import pickle
    reader = open(PKL_PATH, 'rb')
    data = pickle.load(reader)
    reader.close()

    # 将data中的数据写入字符串string
    for lst in data:
        x, y, w, h = list(map(int, lst))
        x1, y1, x2, y2 = x, y, x+w, y+h
        line = (" ").join(list(map(str, [x1, y1, x2, y2])))
        string += (line + "\n")

return string