unix时间戳与计算机系统时间互相转换。系统时间转换成unix时间戳与unix时间戳转换为系统时间。-unix timestamps are interchangeable with the computer system time. System time to convert a unix timestamp and unix timestamp is converted to the system time.

自己写的一些小功能，如时间戳转换，cookie设置，文件上传等等。-Write some small features, such as a timestamp conversion, cookie settings, file uploads and more.