def getTicketCount(yp_info):
    """
    从余票字符串中获得余票数据。
    余票信息字符串如下：
    1018053038405095000010180500003032150000
    O055300502M0933000989174800019
    返回的是一个余票字典，并不是很全面，只取了我需要的类型，如下
    ZY 一等座
    ZE 二等座
    WZ 无座
    YZ 硬座
    YW 硬卧
    RW 软卧   
    """

    seat = {"WZ":0, "YZ":0, "YW":0, "RW":0, "ZY":0, "ZE":0}
 
    i = 0;
    while i in range(len(yp_info)):
        # 1*****3179
        group = yp_info[i:i+10];

        # 1(席别)
        seatType = group[:1];
        # 硬座: 1, 硬卧: 3, 软卧: 4, 二等座:O, 一等座:M
        # 3179
        count = group[6:10];
        while len(count) > 1 and count[0:1] == "0": # count为0000的情况, count最终等于0
            count = count[1:1+len(count)];
        # 3179
        count = int(count);
        if seatType == "1":
            if count < 3000:
                seat['YZ'] = count
            else:
                seat['WZ'] = count - 3000
        elif seatType == "3":
            seat['YW'] = count
        elif seatType == "4":
            seat['RW'] = count
        elif seatType == "M":
            seat['ZY'] = count
        elif seatType == "O":
            if count < 3000:
                seat['ZE'] = count
            else:
                seat['WZ'] = count - 3000
        i = i + 10
    return seat