//十六进制字符串转字节数组,跟网上demo一样
function HexString2Bytes(str) {
var pos = 0;
var len = str.length;
if (len % 2 != 0) {
return null;
}
len /= 2;
var arrBytes = new Array();
for (var i = 0; i < len; i++) {
var s = str.substr(pos, 2);
var v = parseInt(s, 16);
arrBytes.push(v);
pos += 2;
}
return arrBytes;
}
//字节数组转十六进制字符串,对负值填坑
function Bytes2HexString(arrBytes) {
var str = "";
for (var i = 0; i < arrBytes.length; i++) {
var tmp;
var num=arrBytes[i];
if (num < 0) {
//此处填坑,当byte因为符合位导致数值为负时候,需要对数据进行处理
tmp =(255+num+1).toString(16);
} else {
tmp = num.toString(16);
}
if (tmp.length == 1) {
tmp = "0" + tmp;
}
str += tmp;
}
return str;
}