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Somebody to Ruby
Koichi ITO
March 23, 2019
Programming
4
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Somebody to Ruby
Rails Developers Meetup 2019 (
https://railsdm.github.io
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Koichi ITO
March 23, 2019
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Transcript
3BJMT%FWFMPQFST.FFUVQ 4BU 0SBDMF$PSQPSBUJPO+BQBO ג ӬγεςϜϚωδϝϯτ ίϛϡχςΟϚωʔδϟ ҏ౻ߒҰ !LPJD 3VCZίϛϡχςΟͷา͖ํ
4PNFCPEZUP3VCZ
!LPJD w $PNNVOJUZ.BOBHFS BU&4. *OD w 3VCP$PQ$PNNJUUFS w "30SBDMFFOIBODFE BEBQUFS$PNNJUUFS
w $VDVNCFS$PNNJUUFS
None
ސ ೋਓ !LBLVUBOJ !BNBUTVEB Advisors
044ίϛϡχςΟͱͷڞੜΛࢧԉ
ۜ࠲3BJMTটߨԋ 3VCP$PQίϛολʔʹΑΔ 3VCP$PQೖ Ծ 5IV TUBSU $PNJOHTPPO
w ϞώΧϯҰঋ w ఱ໌Ұख़Ұঋ w ༤ொੜҰঋ w ձ່͘͞Β࢛߹ w 26&&/࢛߹
w ాञ͘͞Βϥϕϧ࢛߹ w ॕ७େΈ࢛߹ w Ԟೳొͦͷ·Μ·࢛߹ w ୴७ۛੜ#:࢛߹ w Ԟຏ࢛߹ 🍶Ұ w ଜ༞ُޱҰঋ w ೆੜҰঋ w ൬伻Ұঋ w དྷ͘͞Β࢛߹ w ఱԺय़࢛߹ w य़բՖϥϕϧ࢛߹ w େഌϚονϣ࢛߹ w फݰ͠΅Γ࢛ͨͯ߹ w ฏ࣍ੜ࢛߹ w Ԟຏ࢛߹ 🍶ೋ
None
4QPOTPSFECZ&4. *OD /JHIU$SVJTF🛳⛱🍺 BU3VCZ,BJHJ 5IF.BSJFSB$PVOUFS POUIFTUqPPSPG #BZTJEF1MBDF)BLBUB'VUP5FSNJOBM 👉8FE"QSBU%FQBSUVSF 🌊
$PNJOHTPPO
8FBSFIJSJOH ࠾༻ Ҏ্ͷ3BJMTΞϓϦ։ൃͷ࣮ lίϛϡχςΟͱڞੜ͠ͳ͕Β͍ͨ͠z @koicまでどうぞ
ΠϯτϩμΫγϣϯ Introduction
3VCZָ͕͍͠ਓָ͍ͨͪ͠ People who enjoy Ruby as fun are fun
.*/"48"/ Matz is Nice And So We Are Nice
IUUQTUXJUUFSDPNLBLVUBOJTUBUVT
None
l ͖ͳϝιου ͳΜͰ͔͢ʁ 8IBUJTZPVSGBWPSJUFNFUIPE
Ұ൪ਓؾͷϝιου Most popular method in the Rubyist Magazine
IUUQTEPDTSVCZMBOHPSHKBNFUIPE&OVNFSBCMFJDPMMFDUIUNM
IUUQTEPDTSVCZMBOHPSHKBNFUIPE&OVNFSBCMFJNBQIUNM NBQ
l 3VCZJTUͨͪͷ l l l ਓࠩ͠ࢦͱখࢦ͚ͩͰଧͭͱ͜Ζ͕͓͠ΌΕ DPMMFDUͰͳ͘NBQɻ͍͔Β JUFSBUPSͱͯ͠ FBDIΑΓNBQͷํָ͠ ͍ΑͶ
ࢲͷ಄ͷதNBQͩΒ͚ Rubyists are nice
ίϛϡχςΟ ਓʑͷू·Γ Community is a gathering of people
ࠓͷ Today’s talk
w ҬίϛϡχςΟ w 044ίϛϡχςΟ w ΧϯϑΝϨϯε ओ Theme
ਓʑͷू·Γ༗ػతʹܨ͕͍ͬͯΔ 3FHJPOBM DPNNVOJUZ 044 DPNNVOJUZ $POGFSFODF Ruby communities are connected
ࢲͨͪͷ ׆ಈੈք Our world
ݱ࣮ੈք ωοτੈք Internet world Real world
w ΧϯϑΝϨϯε w Ҭ3VCZίϛϡχςΟ w 3VCZΛഎܠʹͨ͠ձࣾݸਓͰͷ Πϕϯτษڧձ w ͦ͜ͰΓ߹ͬͨ3VCZJTUͨͪͱ ͷΦϑձతͳԿ͔
ϦΞϧϫʔϧυReal world
w (JU)VC w 5XJUUFS w 4MBDL *EPCBUB w ه #MPH
2JJUB FTB w ߋʹ৮ഔͱͳΔใιʔεແਚଂ ΠϯλʔωοπϫʔϧυInternet world
w ͖ͳ͜ͱΛͤΔͷͨͷ͍͠ w 3VCZΛͬͨԶͬͯεήʔײ w ͖ͳϝιου͔Β5SBDF1PJOU ·Ͱ w 3BJMTΛ͡Ίແݶͷ(FNͨͪ ಉͷ࢜ͱ৮ഔͷத৺
Ruby is a nice catalyst
ࣗΒͷٕज़ʹؔ৺Λ࣋ͭ͜ͱ ͋ͳͨͷࣄʹ͍ͭͯߟ͑Δ͜ͱʂ ܅ֶͿ͜ͱ͕৺͔Β͖ͩ ܅ιϑτΣΞͷ͜ͱΛେʹࢥ͍ͬͯΔ ΞδϟΠϧαϜϥΠ "HJMF 4BNVSBJ +POBUIBO3BTNVTTPO ୡਓϓϩάϥϚʔ 5IF1SBHNBUJD1SPHSBNN
%BWJE5IPNBT "OESFX)VOU ࠜݯͷӔ Stairway to the pragmatic programmer
ҬίϛϡχςΟ Ruby’s regional communities
$IBQ l91ͱί ϛϡχςΟz IUUQXXXBNB[PODPKQEQ XP and Community
l lF9USFNF1SPHSBNNJOHz,FOU#FDL ҰਓͰͰ͖ͳ͍ ͜ͱڞಉମͱ͠ ͯͳΒ͛͠Β ΕΔͷͩɻ
w ͍ͬͯΔϥΠϒϥϦͷύονͷॻ ͖ํɺ͍ํͷ૬ஊΛ͍ͨ͠ w τϐοΫͱͯ͠औΓѻ͍ͬͯΔٕज़ ͷಈΛΓ͍ͨ w ଞࣾɺଞαʔϏεͰͷ։ൃӡ༻ࣄྫ ΛΩϟονΞοϓ͍ͨ͠ ࡾਓدΕจघͷܙ
Wisdom of three people
ೖΓํͷ ଟ༷ੑ Diversity to join the community
w "TBLVTBSC w 4IJCVZBSC w (JO[BSC w 0NPUFTBOEPSC w 5PLZVSC
w OJOJSC w :PLPIBNBSC 3FHJPOBMDPNNVOJUJFTJO5PLZP &UD FUD
w ίʔυΛॻ͘ਓ͕ͨͪू·Δ w ϓϨθϯςʔγϣϯ w ಡॻձ w ϑϦʔελΠϧ w Λম͍ͨΓುΛͭͭ͘
͍͔ͭ͘ͷҬSCͷελΠϧ Community various
৺ʹཹΊ͓͍͍ͯͯͩ͘͞ ͜Εࠓ·Ͱ ݴΘΕ͖ͯͨ ͣͬͱ ͜ͱͰ͢ɻ First of all
ࢠᐌ͘ɺ ʮ໊લॏ ཁʯ Naming is important
ݪଇ̏ɿ໊લΛ֮͑Δ Remember people's names
w ٯઆతʹͲͷΑ͏ʹ໊લΛ֮͑ͯΒ͏͔ w -5ͷ͋ΔൃදελΠϧͷίϛϡχςΟͰ ͋ΕൃදऀʹͳΔ w Կʹؔ৺Λ࣋ͬͯ׆ಈ͍ͯ͠Δਓ͔Λࣗݾ հͰ͖Δ w ͔ࣗΒΛֻ͚Δͷ͕ෆಘखͳਓʹ͓
͢͢Ί ΦϨΦϨ ݪଇ̏ɿ໊લΛ֮͑Δ
w Ұ࣌ؒ ि࣌ؒ ಇ͚ ͢ωλͱͳΔͷࠩ͋Δ w ͕ࣗΒͳ͍͜ͱଞਓΒͳ ͍Մೳੑ͕͋Δ w Կ͔ΛΞτϓοτ͢ΔͷεΩϧ
ͳͷͰʹ͚Δ͜ͱ͕Ͱ͖Δश׳ ϓϨθϯ Ξτϓοτ ͷεεϝ Encouragement for presentation
w ࣄͰ044Λ͏ػձଟ͍ w ͕ࣗ౿Μͩόάܨ͕Γͷଞਓ ʹͱͬͯόάͰ͋ΔՄೳੑ͕͋Δ w ࣗྗͰͳ͓ͤͳͯ͘ΠγϡʔΛ։ ͍ͯϨϙʔτ͢Δͱ௨ʹͳΔ w ҬίϛϡχςΟͰฉ͘ػձ
044 Ξτϓοτ ͷεεϝ Encouragement for OSS
w ୭͕Կͷ͠ํΛ͍ͬͯΔ͔ w ৽͍͠ػೳΛఏҊ͢Δલʹͦͷ(FN ͷར༻༻్ͱͯ͠ଥ͔Ͳ͏͔ w ύονΛͱ͓ͨ͢ΊͷΞυόΠε w
1VMM3FRVFTUͷϨϏϡʔ͕ࢭ·ͬ ͍ͯΔཧ༝ (FNͷ։ൃऀ ୭ Λ֮͑Δ Remember gem author's names
ωοτੈք ݱ࣮ੈք γϣʔτΧοτͯ͠ ձ͍ʹߦ͘ Real world Internet world Go to
meet
BNBUTVEB
[email protected]
%FDPSBUFBTTPDJBUFEPCKFDUT
None
SVCPDPQIRSVCPDPQ A/BNJOH'JMF/BNFABMMPXTA A
None
QSZQSZ .VMUJMJOFJOQVUUFTUIBTGBJMFEBGUFS3VCZQSFWJFX
None
SVCZHFNTSVCZHFNT &SSPSPDDVSSFEXIFOFYFDVUJOH AHFNVQEBUFTZTUFNAVTJOH
None
l ιϑτΣΞਓ͕ ਓͷͨΊʹ࡞͍ͬͯΔ ג ӬγεςϜϚωδϝϯτ$&0 ฏು݈ࣇ Software is made for
people by people
044ίϛϡχςΟ Ruby’s OSS communities
044ίϛϡχςΟͱͷڞੜΛࢧԉ
None
ۭલͷٕज़ ސϒʔϜ
IUUQTBHJMFFTNDPKQOFXTBEWJTFSTIUNM
w 3BJMT$POGʹຖࢀՃ͍ͯ͠Δদ ా͞Μ BNBUTVEB Λܴ͑Δձ w 3BJMT͔ΒίʔυΛಡΉ w ຖ݄ͻͱΓίΞίϛολʔհΛ͠ ͯΒ͍l3BJMTzͱ͍͏ϓϩμΫ
τͰͳ͘ίϛϡχςΟ໘Λ܆ಃ 3BJMT044ύονձͷ։࢝࣌ Tell amatsuda about the Rails community
IUUQTSVCZPOSBJMTPSH
None
None
None
l ؒͰ ਓҎ্͕ ؔΘ͍ͬͯΔϓϩδΣΫτ !LBNJQP The Rails project involving more
than 5,200 people in 15 years
w ࣮ϓϩδΣΫτͰࠔ͍ͬͯΔ͔ Βೖ͍ͬͯ͘ w 3BJMTϦϙδτϦͷΣʔϒʹΔ w 3BJMTࣗମͷґଘϓϩδΣΫτΛݟ ͯΈΔ ͲͷΑ͏ʹೖ͍͔ͬͯ͘ʁ How
to join the Rails/OSS community
w CVOEMFVQEBUFSBJMTͰ͕ ൃੜ͢Δͱ͖͕͋Δ w ͳ͔ͥ8)&3&݅Ͱͷൺֱʹλ ΠϜελϯϓΛͬͨ࣌ʹ࣌ؒͣ Β͞ͳ͍ͱ݁Ռ͕ฦͬͯ͜ͳ͘ͳΔ -POH-JWF3BJMTΞϓϦέʔγϣϯ Upgrade Rails
application with Oracle
STJNPSBDMFFOIBODFE "OJOTUBODFPG5JNF8JUI;POFDMBTTEPFT/05RVPUF
[email protected]
%"5&GVODUJPOPO3BJMTY
None
None
w ࣌ɺZBIPOEB͞Μ/:ࡏॅͰ ͷ໘ࣝͳ͔ͬͨ w %))দా͞ΜͰͳ͍3BJMTʹؔ Θ͍ͬͯΔ։ൃऀͱͷ࠷ॳͷେ͖ͳ ίϯλΫτ w ͜ͷΠγϡʔ͠Β͘ղܾ͠ͳ͍ 5IF(BUFPG044
w ࣌ࠩ 65$ ͣΕ͍ͯΔͱ Θ͔͍ͬͯͨͷͰ"3ͱ0SBDMF BEBQUFSΛಡΜͰɺͱΓ͋͑ͣϞ ϯΩʔύονͰCVOEMFVQEBUF w ͤΊͯϏδωεཁ͔݅Β֎ͨ͠Ϟϯ
Ωʔύον(FNʹ͢Δ ͓னͷࣄͬͯ͘Εͳ͍ Sometimes use monkey patch because business speed is fast
w 3VCZ,BJHJͰɺ3VCZί ϛολʔͷۚࢠ͞ΜʹZBIPOEB͞ ΜΛհͯ͠Β͏ w 3BJMTϦϙδτϦͷ13ͷ։͖ํ Λڭ͑ͯΒͬͨΓɺձظதʹҰॹ ʹσόοάΛͨ͠Γ͢Δ ٿͷཪ͔Βͬͯ͘Δ An
Oracle adapter committer came to Japan from NY
l ͳΜͰϞϯΩʔύονΛॻ ͘ྗ͕͋ΔͷʹVQTUSFBN ʹύονΛॻ͔ͳ͍ͷʁ !ZBIPOEB Why don't you open a
pull request upstream?
w LPJDlͲ͏ͤਖ਼͍͠ͷ͔͔Β ͳ͍ΜͰ͢z w ZBIPOEBlࢲͩͬͯͲ͏ͨ͠Β ਖ਼͍͔͠Βͳ͍Αz w LPJDlίϛολʔ͔ͩΒ།ҰͷղΛ ͬͯΔঢ়ଶͱݶΒͳ͍ʜʜʜ 💭z
།Ұͷਖ਼ղ͕ͳ͍ݱ࣮ There is more than one way to solve problems in the real world
։؟ Get the hang of OSS
STJNPSBDMFFOIBODFE 'JY03"FSSPSXIFOFYFDVUJOHASBJMTECTDIFNBMPBEA
w $*ͷεϩʔςετʹରͯ͠lSBJMT ECTDIFNBMPBEzΛ͔ͨͬͨ͠ ͕03"ͰΤϥʔʹͳΔ w ΞϓϦͷϞϯΩʔύονੜ·Ε w ࣗͷதͷه೦ൾͱͳΔlֻ͚࣠z ϞϯΩʔύον͔Βͷ٫ Transfer
code from monkey patch to upstream
0SBDMF DBOOPUDPOOFDUJOTFSUT XJUIAA
"TUSVDUVSFTRMVTFS $BMMUIF EFWFMPQFSJOWPMWFE
6TF0SBDMF 6TF0SBDMF
None
"TUSVDUVSFTRMVTFS
/FFECBDLQPSU
"QSPKFDUNFNCFS
None
3FOUH3
%BUBCBTFWFSTJPOT
)BQQZIPMJEBZT 9`NBT )BQQZIPMJEBZTUPZPV UPP 1MFBTFSFWJFXJU
None
QSPCBCMZMBTU RVFTUJPO
None
w 1VMM3FRVFTUͰߦ͏ΓͱΓͰͷ ӳจͷl͓͚͡z͕ݮͬͨ w ύονͷ͛ํͷίπ͕Θ͔ͬͨ w %FTDSJQUJPO ίϛοτϝοηʔ δ ʹใΛ٧Ί͓ͯ͘
w Ͱ͖Δ͚ͩޙग़͠ʹͳΒͳ͍Α͏ʹ ࣗͷதͷλʔχϯάϙΠϯτ Turning point
͋Δಥવ One day I had a lot of PR open
None
࣌ͷ͓ؾ࣋ͪ Policy to go with Oracle enhanced adapter
w ςετ͕௨͍ͬͯͳ͍(FNΛ࣮ۀ Ͱ͍ͬͯͨͱ͍͏ॳͷڻ͖ w ςετΛ௨͢ύονΛ͛ͯͨ࣌ 0SBDMFͷਓͱࢥΘΕ͍ͯͨͱࢥ͏ w ίϛολʔਪન3BJMTͰ׆ಈ͢͠ ͘͢ΔϥϕϦϯά͋ΔͱޙͰฉ͘
3BJMTͰ0SBDMFͷςετ͕ͱ͓Βͳ͍ Oracle adapter does not pass in Rails framework testing
w 0SBDMFΛ௨ͯ͡3BJMTͷͻͱͨͪ ͱΓͱΓΛ͢Δ w 3BJMTΞϓϦˠ0SBDMFˠ"3 w ࣌໘ࣝͷͳ͔ͬͨLBNJQP͞Μ দా͞Μʹฉ͍ͨ͜ͱͷ͋Δ3BJMT ίϛολʔʹϨϏϡʔͯ͠Β͏ ଞਓͱҧ͏ͳΒҧ͏ͳΓʹͬͯΈͨ
If you change, the whole world changes around you
w ϨϏϡΞʔ͕ͲΜͳਓ͔ؾʹͳΔ w ͲΜͳύονΛग़͍ͯͨ͠ΓɺͲ͜ ͷࠃʹॅΜͰ͍ͨΓɺͲ͜ͷॴଐͳ ͷ͔ #BTFDBNQ 4IPQJGZ w
ϨϏϡʔͰ͓ੈʹͳͬͨ͋ͱ໊લ ΞΠίϯΛݟΔͱۙײ͕༙͘ ϨϏϡʔ͞Ε͍ͯΔͱ Interested in reviewers
w 3BJMTDPOUSJCVUPSTͷϥϯΧʔ Λݟ͍ͯ͘ w ͳΜͱͳ͘ຊͷਓΛ্Ґ͔ΒோΊ ͨΓΓ߹͍͕աڈͲΜͳύονΛ ૹ͍ͬͯͨͷ͔ΛݟͨΓͯ͠ΈΔ w ͋Εʁຊͷਓଟ͘ͳ͍ʁ ަྲྀͷ͋ͬͨਓͷઌ͕ؾʹͳΔ
Interested in people in the community
ʵ
IUUQTUXJUUFSDPNZBIPOEBTUBUVT
l ຊͷ3BJMT೦ɻຊͰ 3BJMT͕ΘΕͯͳ͍ͱ͍͏͜ ͱͳ͍ͱࢥ͏͕ɺͦΕʹͯ͠ ։ൃऀ͕গͳ͍ɻࢲ͕ݟͨͱ ͜ΖਓதͰຊਓΒ͖͠ ਓਓɻ IUUQTXXXBUNBSLJUDPKQOFXTSBJMTIUNM There are
few Japanese contributors of Rails in 2009
w ۙॴʹ͍Δਓͷ(FNΛ͑ͷ๏ଇ w ࠔͬͨͱ͖։ൃऀʹҬίϛϡχ ςΟͳͲͰͤΔ͔ w ΛΑΓཧ͘͢͠ͳΔ w ͲΜͳਓ͕࡞ͬͨ(FN͔͔Δ
3BJMTपลͷਓ͕पΓʹ૿͑Δޮೳ Love your neighbour Gems
044ίϛϡχςΟͱͷڞੜΛࢧԉ
w ҰՈݴΛ࣋ͭॏཁ w ˓˓˓ʹৄ͍͠ਓ w ίϛϡχςΟʹ͓͚Δ૬ख͔Βظ ͞Ε͍ͯΔࣗͷׂ͕໌֬ʹͳΔ w ͕͘ͳΔ 044ίϛϡχςΟͰͷੜଘઓུ
Trust in the OSS Community
SBJMTSBJMT &OBCMFBVUPDPSSFDUGPSA-JOU&OE"MJHONFOUADPQ
None
w ͱ͍͖͑Ͱ͍ͬͯΔ w ͢Ͱʹߩݙͱࢥ͍ͬͯͳ͍ w ͩͬͯ3VCZָ͍͠Ͱ͠ΐʁ 044ίϛϡχςΟͰͷੜଘઓུ Enjoy programming with
Ruby/Rails
ΧϯϑΝϨϯε Ruby’s conference
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w Λௌ͘ w ਓʹձ͏ 3VCZ,BJHJBOEPUIFSDPOG Rubyist meets Rubyist
l ;ͩΜ͔ΒίʔυΛॻ͍ ͨ͜ͱΛΧϯϑΝϨϯε Ͱձ͏ਓͨͪͱ͢ !ZBIPOEB Write the code first
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l 91͏ࢲͷखΛΕͯίϛϡχ ςΟͰࡦఆ͕ਤΒΕ͍ͯ·͢ɻͰɺ ৽͍͠ϓϥΫςΟεʮ༵ۚϏʔϧ ΛҿΈͳ͕ΒʯՃ͍ͨ͠Ͱ͢Ͷ ,FOU#FDL Thank God It's Friday
IUUQTHJIZPKQNBHB[JOFVNMQSFTTBSDIJWFWPM
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w ίʔυʹؔ͢Δڞ௨ͷ w ಉ͡佂ͷ൧Λ৯͏తͳɺಉ͡Ϧϙδ τϦͷίʔυΛॻ͍͍ͯΔϓϩάϥ Ϛʔ͕͍ͨΓ͢Δ w ;ͭ͏ʹੜ׆͍ͯͨ͠Βઈରʹձ͏ ͜ͱͷͳ͔ͬͨਓͨͪͱԑ͕Ͱ͖Δ Πϯλʔωοτͷ͜͏ଆͱձ͏
Meet with Rubyists who are committed to the OSS repository
3VCZָ͕͍͠ਓָ͍ͨͪ͠ People who enjoy Ruby as fun are fun
.*/"48"/ Matz is Nice And So We Are Nice
ਓʑͷू·Γ༗ػతʹܨ͕͍ͬͯͯ ೖΓํͦΕͧΕ 3FHJPOBM DPNNVOJUZ 044 DPNNVOJUZ $POGFSFODF Ruby communities are
connected
w ΦʔϓϯͳίʔυΛॻ͘ w ͓னʹಘͨݟΛΞτϓοτ͢Δ w ਓΛ֮͑Δਓʹ֮͑ͯΒ͏ w lιϑτΣΞਓ͕ਓͷͨΊʹ ࡞͍ͬͯΔzCZฏು݈ࣇ ίϛϡχςΟΛഒָ͠Ή
Enjoy more community
w ϞώΧϯҰঋ w ఱ໌Ұख़Ұঋ w ༤ொੜҰঋ w ձ່͘͞Β࢛߹ w 26&&/࢛߹
w ాञ͘͞Βϥϕϧ࢛߹ w ॕ७େΈ࢛߹ w Ԟೳొͦͷ·Μ·࢛߹ w ୴७ۛੜ#:࢛߹ 🍶Ұ w ଜ༞ُޱҰঋ w ೆੜҰঋ w ൬伻Ұঋ w དྷ͘͞Β࢛߹ w ఱԺय़࢛߹ w य़բՖϥϕϧ࢛߹ w େഌϚονϣ࢛߹ w फݰ͠΅Γ࢛ͨͯ߹ w ฏ࣍ੜ࢛߹ 🍶ೋ
l ίϛϡχςΟͱ୭͔ɻͪΖ Μɺ͋ͳͨͷ͜ͱͩɻ͋ͳ͕ͨ ίϛϡχςΟͰ͋ΓɺͦΕҎ֎ ʹίϛϡχςΟ͍ͳ͍ɻ͋ͳ ͨͷΑ͏ͳਓʑͷू·ΓΛɺί ϛϡχςΟͱݺͿͷͩɻ IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT'PSF8PSEIUNM Community is
yourself