两者之间有区别吗?
shutdown($socket, 0) if $socket;
shutdown($socket, 2) if $socket;
close($socket) if $socket;
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和
shutdown($socket, 2) if $socket;
close($socket) if $socket;
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也有区别
shutdown($socket, 1) if $socket;
shutdown($socket, 2) if $socket;
close($socket) if $socket;
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和
shutdown($socket, 2) if $socket;
close($socket) if $socket;
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最后是close需要的吗?
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