man = []        #创建列表other = []try:    data = open('sketch.txt')    for each_line in data:        try:            (role, line_spoken) = each_line.split(':', 1)            line_spoken = line_spoken.strip()   #去除空白符            if role == 'Man':               man.append(line_spoken)      #将man的话添到man[]                           elif role == 'Other Man':                      other.append(line_spoken)        #将other man的话添到列表                                       except ValueError:      #异常处理            pass    if 'data' in locals():      #调用方法locals()判断‘data’文件是否存在当前环境中        data.close()    except IOError:     #I/O错误处理    print('The data file is missing!')print(man)print(other)