function  Property() {
 var xmlhttp;
 if (window.XMLHttpRequest) {
  xmlhttp = new XMLHttpRequest();
 } else {
 xmlhttp = new ActiveXObject("Microsoft## } .XMLHTTP");
 }
    
 xmlhttp.onreadystatechange = function() {
  if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { .readyState == 4 && xmlhttp.status == 200) { p. .responseText;
   alert(datastr);
   var dataobj = JSON.parse(datastr)
   let dataarr = [];
   for (let i in dataobj) {
  dataobj[i]);
   }
   
   
  }
 }
 
 xmlhttp.open("POST", "https://api.123321y##o/api /device/queryProjectDeviceParamStatus?projId=66", true);

 xmlhttp.send(); 
}