版本:2.2.0

  • https://cdn.bootcdn.net/ajax/libs/socket.io/2.2.0/socket.io.dev.
  • https://cdn.bootcdn.net/ajax/libs/socket.io/2.2.0/socket.io.
  • https://cdn.bootcdn.net/ajax/libs/socket.io/2.2.0/socket.io.slim.dev.
  • https://cdn.bootcdn.net/ajax/libs/socket.io/2.2.0/socket.io.slim.