js解压gzip_unzip解压命令

//js解压gzip
function unzip(key) { 

// 解压
// 将二进制字符串转换为字符数组
var charData = key.split('').map(function (x) { 

return x.charCodeAt(0);
});
// 将数字数组转换成字节数组
var binData = new Uint8Array(charData);
// 解压
var data = pako.inflate(binData);
// key = String.fromCharCode.apply(null, new Uint16Array(data));
var res = '';
var chunk = 16 * 1024;
var i;
for (i = 0; i < data.length / chunk; i++) { 

res += String.fromCharCode.apply(null, data.slice(i * chunk, (i + 1) * chunk));
}
res += String.fromCharCode.apply(null, data.slice(i * chunk));
// 将GunZip ByTAREAR转换回ASCII字符串
return decodeURIComponent(escape(res));
}