HTTPS站点使用WebSocket的错误及解决方案Mixed Content: The page at 'https://www.joshua317.com/1.html' was loaded over HTTPS, but attempted to connect to the insecure WebSocket endpoint 'ws://im.joshua317.com/'. This request has been blocked; this endpoint must be ava
一、文件描述符(File Descriptor)简介socket的fd指什么?fd 是(file descriptor)即文件描述符,这种一般是BSD Socket的用法,用在Unix/Linux系统上。fd全称是file descriptor,是进程独有的文件描述符表的索引。维基百科上介绍:file descriptors index into a perp