1: Support custom skin function, and separate the front-end skin from the program. For specific tags, please refer to: skin.html file in the ./templates/default directory 2: Data caching function caches some commonly used but infrequently updated information to reduce queries and improve program execution efficiency 3: Users can freely set the website access log switch, and can easily check some basic information of visitors. 4: There are 3 sets of skins built into the program. Users can choose according to their preferences or develop their own skin files.