Localhost是本机的本地。你应该使用IP地址或域名：

Localhost is local to the machine. You're IP should use a ip address or domain name:

类似于：
io.connect（'192.168.1.110'）;
或io.connect（'test.myapp.com'）;

something like: io.connect('192.168.1.110'); or io.connect('test.myapp.com');