net.getDefaultAutoSelectFamilyAttemptTimeout()

获取 socket.connect(options) 的 autoSelectFamilyAttemptTimeout 选项的当前默认值。初始默认值为 250，或通过命令行选项 --network-family-autoselection-attempt-timeout 指定的值。

【Gets the current default value of the autoSelectFamilyAttemptTimeout option of socket.connect(options). The initial default value is 250 or the value specified via the command line option --network-family-autoselection-attempt-timeout.】

• 返回：<number> autoSelectFamilyAttemptTimeout 选项的当前默认值。