ps：两章之内把比赛写完。
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    Permissionisherebygranted，freeofcharge，toanypersonobtainingacopyofthissoftwareandassociateddocumentationfiles(the“Software“)，todealintheSoftwarewithoutrestriction，includingwithoutlimitationtherightstouse，copy，modify，merge，publish，distribute，sublicense，and/orsellcopiesoftheSoftware，andtopermitpersonstowhomtheSoftwareisfurnishedtodoso，subjecttothefollowingconditions:
    TheabovecopyrightnoticeandthispermissionnoticeshallbeincludedinallcopiesorsubstantialportionsoftheSoftware.THESOFTWAREISPROVIDED“ASIS“，WITHOUTWARRANTYOFANYKIND，EXPRESSORIMPLIED，INCLUDINGBUTNOTLIMITEDTOTHEWARRANTIESOFMERCHANTABILITY，FITNESSFORAPARTICULARPURPOSEANDNONINFRINGEMENT.INNOEVENTSHALLTHEAUTHORSORCOPYRIGHTHOLDERSBELIABLEFORANYCLAIM，DAMAGESOROTHERLIABILITY，WHETHERINANACTIONOFCONTRACT，TORTOROTHERWISE，ARISINGFROM，OUTOFORINCONNECTIONWITHTHESOFTWAREORTHEUSEOROTHERDEALINGSINTHESOFTWARE.TheMITLicense(MIT)Copyright(c)<year><copyrightholders>
    Permissionisherebygranted，freeofcharge，toanypersonobtainingacopyofthissoftwareandassociateddocumentationfiles(the“Software“)，todealintheSoftwarewithoutrestriction，includingwithoutlimitationtherightstouse，copy，modify，merge，publish，distribute，sublicense，and/orsellcopiesoftheSoftware，andtopermitpersonstowhomtheSoftwareisfurnishedtodoso，subjecttothefollowingconditions:
    TheabovecopyrightnoticeandthispermissionnoticeshallbeincludedinallcopiesorsubstantialportionsoftheSoftware.THESOFTWAREISPROVIDED“ASIS“，WITHOUTWARRANTYOFANYKIND，EXPRESSORIMPLIED，“，WITHOUTWARRANTYOFANYKIND，EXPRESSORIMPLIED，(未完待续。)