--- send(mesg, flags[, to])
--- send(mesg, flags, host, port)

    åȤ𤷤ƥǡޤflags ˴ؤƤ
    send(2) 򻲾ȤƤconnect Ƥʤå
    ФƤꤹ뤿 to 뤤ϡhost  
    port ꤹɬפޤºݤäǡĹ
    ޤ

    to ˤϥåȥɥ쥹¤Τ pack ʸ
    ꤷޤ

    host, port ˴ؤƤ ۥȻ
    ӥ򻲾ȤƤ

    2 3 ηξưϡ
    BasicSocket#send [BasicSocket/send] ƱǤ

    4 ηǡꤷۥȤʣΥɥ쥹ľ硢줫
    Υɥ쥹ؤޤ(뤤Ϥ٤ƤԤ
    )ƥɥ쥹ؤ˻ߤޤ

    ǡ˼Ԥ㳰 Errno::EXXX ȯޤ

