这个不能具体点吗?
Signals that an error occurred while attempting to connect a socket to a remote address and port. Typically, the connection was refused remotely (e.g., no process is listening on the remote address/port).
这显然是出现了连接异常,当试图连接一个远程的地址和端口好号的套接字时,发生一个错误。典型有,这个连接被远程拒绝。例如:在远程的地址的端口号没有相对应的程序来处理。
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