使用jscript实现二进制读写脚本代码

使用jscript实现二进制读写脚本代码

js/jQuery 2024-12-30 22:40:05 6个月前

因此，这里是一个很好的方式访问的二进制文件从JScript的。如果您要访问的这个对象从VBScript中，然后把它放在一个SWF文件。此对象已经被用于在愤怒将文件上载到Web服务，并已被证明是好的和快速的文件，在0-10MB的地区。/**Thisisafairlywelloptimizedobjectwhichalows 访问的二进制文件从JScript的在Windows *作业系统。*该文件的末尾是小的一套测试，以显示它如何 *用。您将需要adodb2.5或更高版本。 *这将是使上最2000年机器和所有XP或更高 *机器。 * *版权：博士亚历山大j特纳-保留所有权利。 *请随时与使用此代码在任何您喜欢的方式 *只要您一个参考的地方，在评论 *我写的。functionBinaryFile(name) { varadTypeBinary=1 varadTypeText=2 varadSaveCreateOverWrite=2 //Thetrick-thisisthe'oldfassioned'nottranslationpage //Itlestjavascriptusestringstoactlikerawoctets varcodePage='437';

this.path=name;

varforward=newArray(); varbackward=newArray();

//Note-forbetterperformanceIshouldpreconvertthesehex //definitionstodecimal-atsomepoint:-)-AJT forward['80']='00C7'; forward['81']='00FC'; forward['82']='00E9'; forward['83']='00E2'; forward['84']='00E4'; forward['85']='00E0'; forward['86']='00E5'; forward['87']='00E7'; forward['88']='00EA'; forward['89']='00EB'; forward['8A']='00E8'; forward['8B']='00EF'; forward['8C']='00EE'; forward['8D']='00EC'; forward['8E']='00C4'; forward['8F']='00C5'; forward['90']='00C9'; forward['91']='00E6'; forward['92']='00C6'; forward['93']='00F4'; forward['94']='00F6'; forward['95']='00F2'; forward['96']='00FB'; forward['97']='00F9'; forward['98']='00FF'; forward['99']='00D6'; forward['9A']='00DC'; forward['9B']='00A2'; forward['9C']='00A3'; forward['9D']='00A5'; forward['9E']='20A7'; forward['9F']='0192'; forward['A0']='00E1'; forward['A1']='00ED'; forward['A2']='00F3'; forward['A3']='00FA'; forward['A4']='00F1'; forward['A5']='00D1'; forward['A6']='00AA'; forward['A7']='00BA'; forward['A8']='00BF'; forward['A9']='2310'; forward['AA']='00AC'; forward['AB']='00BD'; forward['AC']='00BC'; forward['AD']='00A1'; forward['AE']='00AB'; forward['AF']='00BB'; forward['B0']='2591'; forward['B1']='2592'; forward['B2']='2593'; forward['B3']='2502'; forward['B4']='2524'; forward['B5']='2561'; forward['B6']='2562'; forward['B7']='2556'; forward['B8']='2555'; forward['B9']='2563'; forward['BA']='2551'; forward['BB']='2557'; forward['BC']='255D'; forward['BD']='255C'; forward['BE']='255B'; forward['BF']='2510'; forward['C0']='2514'; forward['C1']='2534'; forward['C2']='252C'; forward['C3']='251C'; forward['C4']='2500'; forward['C5']='253C'; forward['C6']='255E'; forward['C7']='255F'; forward['C8']='255A'; forward['C9']='2554'; forward['CA']='2569'; forward['CB']='2566'; forward['CC']='2560'; forward['CD']='2550'; forward['CE']='256C'; forward['CF']='2567'; forward['D0']='2568'; forward['D1']='2564'; forward['D2']='2565'; forward['D3']='2559'; forward['D4']='2558'; forward['D5']='2552'; forward['D6']='2553'; forward['D7']='256B'; forward['D8']='256A'; forward['D9']='2518'; forward['DA']='250C'; forward['DB']='2588'; forward['DC']='2584'; forward['DD']='258C'; forward['DE']='2590'; forward['DF']='2580'; forward['E0']='03B1'; forward['E1']='00DF'; forward['E2']='0393'; forward['E3']='03C0'; forward['E4']='03A3'; forward['E5']='03C3'; forward['E6']='00B5'; forward['E7']='03C4'; forward['E8']='03A6'; forward['E9']='0398'; forward['EA']='03A9'; forward['EB']='03B4'; forward['EC']='221E'; forward['ED']='03C6'; forward['EE']='03B5'; forward['EF']='2229'; forward['F0']='2261'; forward['F1']='00B1'; forward['F2']='2265'; forward['F3']='2264'; forward['F4']='2320'; forward['F5']='2321'; forward['F6']='00F7'; forward['F7']='2248'; forward['F8']='00B0'; forward['F9']='2219'; forward['FA']='00B7'; forward['FB']='221A'; forward['FC']='207F'; forward['FD']='00B2'; forward['FE']='25A0'; forward['FF']='00A0'; backward['C7']='80'; backward['FC']='81'; backward['E9']='82'; backward['E2']='83'; backward['E4']='84'; backward['E0']='85'; backward['E5']='86'; backward['E7']='87'; backward['EA']='88'; backward['EB']='89'; backward['E8']='8A'; backward['EF']='8B'; backward['EE']='8C'; backward['EC']='8D'; backward['C4']='8E'; backward['C5']='8F'; backward['C9']='90'; backward['E6']='91'; backward['C6']='92'; backward['F4']='93'; backward['F6']='94'; backward['F2']='95'; backward['FB']='96'; backward['F9']='97'; backward['FF']='98'; backward['D6']='99'; backward['DC']='9A'; backward['A2']='9B'; backward['A3']='9C'; backward['A5']='9D'; backward['20A7']='9E'; backward['192']='9F'; backward['E1']='A0'; backward['ED']='A1'; backward['F3']='A2'; backward['FA']='A3'; backward['F1']='A4'; backward['D1']='A5'; backward['AA']='A6'; backward['BA']='A7'; backward['BF']='A8'; backward['2310']='A9'; backward['AC']='AA'; backward['BD']='AB'; backward['BC']='AC'; backward['A1']='AD'; backward['AB']='AE'; backward['BB']='AF'; backward['2591']='B0'; backward['2592']='B1'; backward['2593']='B2'; backward['2502']='B3'; backward['2524']='B4'; backward['2561']='B5'; backward['2562']='B6'; backward['2556']='B7'; backward['2555']='B8'; backward['2563']='B9'; backward['2551']='BA'; backward['2557']='BB'; backward['255D']='BC'; backward['255C']='BD'; backward['255B']='BE'; backward['2510']='BF'; backward['2514']='C0'; backward['2534']='C1'; backward['252C']='C2'; backward['251C']='C3'; backward['2500']='C4'; backward['253C']='C5'; backward['255E']='C6'; backward['255F']='C7'; backward['255A']='C8'; backward['2554']='C9'; backward['2569']='CA'; backward['2566']='CB'; backward['2560']='CC'; backward['2550']='CD'; backward['256C']='CE'; backward['2567']='CF'; backward['2568']='D0'; backward['2564']='D1'; backward['2565']='D2'; backward['2559']='D3'; backward['2558']='D4'; backward['2552']='D5'; backward['2553']='D6'; backward['256B']='D7'; backward['256A']='D8'; backward['2518']='D9'; backward['250C']='DA'; backward['2588']='DB'; backward['2584']='DC'; backward['258C']='DD'; backward['2590']='DE'; backward['2580']='DF'; backward['3B1']='E0'; backward['DF']='E1'; backward['393']='E2'; backward['3C0']='E3'; backward['3A3']='E4'; backward['3C3']='E5'; backward['B5']='E6'; backward['3C4']='E7'; backward['3A6']='E8'; backward['398']='E9'; backward['3A9']='EA'; backward['3B4']='EB'; backward['221E']='EC'; backward['3C6']='ED'; backward['3B5']='EE'; backward['2229']='EF'; backward['2261']='F0'; backward['B1']='F1'; backward['2265']='F2'; backward['2264']='F3'; backward['2320']='F4'; backward['2321']='F5'; backward['F7']='F6'; backward['2248']='F7'; backward['B0']='F8'; backward['2219']='F9'; backward['B7']='FA'; backward['221A']='FB'; backward['207F']='FC'; backward['B2']='FD'; backward['25A0']='FE'; backward['A0']='FF';

varhD="0123456789ABCDEF"; this.d2h=function(d) { varh=hD.substr(d&15,1); while(d>15){d>>=4;h=hD.substr(d&15,1)+h;} returnh; }

this.h2d=function(h) { returnparseInt(h,16); }

this.WriteAll=function(what) { //CreateStreamobject varBinaryStream=WScript.CreateObject("ADODB.Stream"); //Specifystreamtype-wecheatandgetstringbut'like'binary BinaryStream.Type=adTypeText; BinaryStream.CharSet='437'; //Openthestream BinaryStream.Open(); //Writetothestream BinaryStream.WriteText(this.Forward437(what)); //Writethestringtothedisk BinaryStream.SaveToFile(this.path,adSaveCreateOverWrite);

//Clearnup BinaryStream.Close(); }

this.ReadAll=function() { //CreateStreamobject-needsADO2.5orheigher varBinaryStream=WScript.CreateObject("ADODB.Stream") //Specifystreamtype-wecheatandgetstringbut'like'binary BinaryStream.Type=adTypeText; BinaryStream.CharSet=codePage; //Openthestream BinaryStream.Open(); //LoadthefiledatafromdiskTostreamobject BinaryStream.LoadFromFile(this.path); //OpenthestreamAndgetbinary'string'fromtheobject varwhat=BinaryStream.ReadText; //Cleanup BinaryStream.Close(); returnthis.Backward437(what); }

/*Convertaoctetnumbertoacodepage437charcode*/ this.Forward437=function(inString) { varencArray=newArray(); vartmp=''; vari=0; varc=0; varl=inString.length; varcc; varh; for(;i<l;++i) { c++; if(c==128) { encArray.push(tmp); tmp=''; c=0; } cc=inString.charCodeAt(i); if(cc<128) { tmp+=String.fromCharCode(cc); } else { h=this.d2h(cc); h=forward[''+h]; tmp+=String.fromCharCode(this.h2d(h)); } } if(tmp!='') { encArray.push(tmp); }

//thisloopprogressiveconcatonatesthe //arrayelementsentilthereisonlyone varar2=newArray(); for(;encArray.length>1;) { varl=encArray.length; for(varc=0;c<l;c+=2) { if(c+1==l) { ar2.push(encArray[c]); } else { ar2.push(''+encArray[c]+encArray[c+1]); } } encArray=ar2; ar2=newArray(); } returnencArray[0]; } /*Convertacodepage437charcodetoaoctetnumber*/ this.Backward437=function(inString) { varencArray=newArray(); vartmp=''; vari=0; varc=0; varl=inString.length; varcc; varh; for(;i<l;++i) { c++; if(c==128) { encArray.push(tmp); tmp=''; c=0; } cc=inString.charCodeAt(i); if(cc<128) { tmp+=String.fromCharCode(cc); } else { h=this.d2h(cc); h=backward[''+h]; tmp+=String.fromCharCode(this.h2d(h)); } } if(tmp!='') { encArray.push(tmp); }

//thisloopprogressiveconcatonatesthe //arrayelementsentilthereisonlyone varar2=newArray(); for(;encArray.length>1;) { varl=encArray.length; for(varc=0;c<l;c+=2) { if(c+1==l) { ar2.push(encArray[c]); } else { ar2.push(''+encArray[c]+encArray[c+1]); } } encArray=ar2; ar2=newArray(); } returnencArray[0]; }

}

//使用方法：/* varbf0=newBinaryFile(); varcrFolder='C:/Temp/cr' varbf1=newBinaryFile(crFolder+"/PCDV0026.JPG"); varbf2=newBinaryFile(crFolder+"/PCDV0026_.JPG"); bf2.WriteAll(bf1.ReadAll()); */

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