javascript字符串与16进制互转

代码:

// 字符串转16进制
function str2hex(str){
  if(str === ""){
    return "";
  }
  var arr = [];
  arr.push("0x");
  for(var i=0;i
// 16进制转字符串
function hex2str(hex) {
  var trimedStr = hex.trim();
  var rawStr = trimedStr.substr(0,2).toLowerCase() === "0x" ? trimedStr.substr(2) : trimedStr;
  var len = rawStr.length;
  if(len % 2 !== 0) {
    alert("Illegal Format ASCII Code!");
    return "";
  }
  var curCharCode;
  var resultStr = [];
  for(var i = 0; i < len;i = i + 2) {
    curCharCode = parseInt(rawStr.substr(i, 2), 16);
    resultStr.push(String.fromCharCode(curCharCode));
  }
  return resultStr.join("");
}

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