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
发布时间：2016-12-30 来源：查字典编辑
摘要：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...

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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