您可以使用WriteAll功能描述在這裏:Reading and Writing Binary Files Using JScript。版權:Alexander J Turner博士。
請注意,流應是文本類型,然後您將需要執行文本< - >二進制轉換。 我只是測試了所有的代碼,它對我來說工作得很好。
下面是一個完整的例子:
var bf1 = new BinaryFile("C:/Temp/test.bin");
var outBuf = '';
for(var i=0, l=data.length; i<l; i++) {
outBuf += String.fromCharCode(data[i]);
}
bf1.WriteAll(outBuf);
結果看起來是這樣的:
編輯:
我只是做的代碼更緊湊適應,以避免十六進制轉換和雙循環:
// Codepage conversion table
var _c=[199,252,233,226,228,224,229,231,234,235,232,239,238,236,196,197,
201,230,198,244,246,242,251,249,255,214,220,162,163,165,8359,402,
225,237,243,250,241,209,170,186,191,8976,172,189,188,161,171,187,
9617,9618,9619,9474,9508,9569,9570,9558,9557,9571,9553,9559,9565,9564,9563,9488,
9492,9524,9516,9500,9472,9532,9566,9567,9562,9556,9577,9574,9568,9552,9580,9575,
9576,9572,9573,9561,9560,9554,9555,9579,9578,9496,9484,9608,9604,9612,9616,9600,
945,223,915,960,931,963,181,964,934,920,937,948,8734,966,949,8745,
8801,177,8805,8804,8992,8993,247,8776,176,8729,183,8730,8319,178,9632,160],
_w=[],
_r=[];
// Create forward lookup to write & reverse lookup to read
for(var i=0, l=256; i<l; i++) {
var c = (i<128) ? i : _c[i-128];
_w[i] = c;
_r[c] = i;
}
// Read binary data from disk
function binFileToArray(fileName, binArray){
var inStream = new ActiveXObject("ADODB.Stream");
inStream.Type = 2;
inStream.CharSet = '437';
inStream.Open();
inStream.LoadFromFile(fileName);
var inString = inStream.ReadText();
inStream.Close();
for(var i=0, l=inString.length; i<l; i++) {
binArray.push(_r[inString.charCodeAt(i)]);
}
}
// Write binary data to disk
function binArrayToFile(binArray, fileName){
var outStream = new ActiveXObject('ADODB.Stream');
var outString = '';
for(var i=0, l=binArray.length; i<l; i++) {
outString += String.fromCharCode(_w[binArray[i]]);
}
outStream.Type = 2;
outStream.CharSet = '437';
outStream.Open();
outStream.WriteText(outString);
outStream.SaveToFile(fileName, 2);
outStream.Close();
}
// TEST: read binary file from disk & write array back to disk
var testArray = [];
binFileToArray('c:/temp/test.bin', testArray);
binArrayToFile(testArray, 'c:/temp/test2.bin');
// both files equals
這裏的關鍵是使用type = text並進行代碼頁轉換,就像在我的答案中鏈接的文章中所解釋的那樣。在同一篇文章中,您還會發現反向函數_ReadAll_,將其用作概念證明,以讀回保存的文件。 – deblocker