方法一：

function binaryAgent(str) {
  var arr=str.split(" ");
  for(var i in arr){
    arr[i]=String.fromCharCode( parseInt(arr[i],2) );
  }
  var res=arr.join("");
  return res;
}


binaryAgent("01000001 01110010 01100101 01101110 00100111 01110100 00100000 01100010 01101111 01101110 01100110 01101001 01110010 01100101 01110011 00100000 01100110 01110101 01101110 00100001 00111111");

方法二：

function binaryAgent(str) {
  var arr = str.split(' '),
      len = arr.length,
      rStr = '';
  for(var i=0;i<len;i++){
    rStr += String.fromCharCode(parseInt(arr[i],2));
  }
  return rStr;
}


binaryAgent("01000001 01110010 01100101 01101110 00100111 01110100 00100000 01100010 01101111 01101110 01100110 01101001 01110010 01100101 01110011 00100000 01100110 01110101 01101110 00100001 00111111");