ps：明天上午补上。

mitlicense(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，includingbutnotlimitedtothewarrantiesofmerchantability，fitnessforaparticularpurposeandnoninfringement.innoeventshalltheauthorsorcopyrightholdersbeliableforanyclaim，damagesorotherliability，whetherinanactionofcontract，tortorotherwise，arisingfrom，outoforinconnectionwiththesoftwareortheuseorotherdealingsinthesoftware.duienginelicensethemitlicense(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，includingbutnotlimitedtothewarrantiesofmerchantability，fitnessforaparticularpurposeandnoninfringement.innoeventshalltheauthorsorcopyrightholdersbeliableforanyclaim，damagesorotherliability，whetherinanactionofcontract，tortorotherwise，arisingfrom，outoforinconnectionwiththesoftwareortheuseorotherdealingsinthesoftware.

theabovecopyrightnoticeandthispermissionnoticeshallbeincludedinallcopiesorsubstantialportionsofthesoftware.thesoftwareisprovided“asis“，withoutwarrantyofanykind，expressorimplied，includingbutnotlimitedtothewarrantiesofmerchantability，fitnessforaparticularpurposeandnoninfringement.innoeventshalltheauthorsorcopyrightholdersbeliableforanyclaim，damagesorotherliability，whetherinanactionofcontract，tortorotherwise，arisingfrom，outoforinconnectionwiththesoftwareortheuseorotherdealingsinthesoftware.(未完待续。)