摘要： dic = dict() def add_two_dimensional_dictionary(old_dict,key_a,key_b,value): if key_a in old_dict: old_dict[key_a].update({key_b:value}) else: old_dic 阅读全文

摘要： def get_last_line(file_name): offset = -10 with open(file_name, 'rb') as f: # 读取方式要以字节读取 while 1: """ f.seek(off, whence=0)：从文件中移动off个操作标记（文件指针），正往结束方 阅读全文