使用流文件形式存储log日志，日志为随机生成数字串，通过新建来添加，可显示全部log日志，可按时间查询显示日志文件。支持多线程查找，是学习系统编程的好材料。-Stream files stored in the form of log log log randomly generated string of numbers, new to add, display all log log query and display the log file can be time. Find support multithreading, the learning system programming material.