var appid ="123"; var key ="123";var timestamp = Math.round(newDate().getTime()); var result = timestamp.toString().substring(0,10);postman.setGlobalVariable("timestamp",result);var strmd5 = CryptoJS.MD5("appid="+appid+"×tamp_str="+result+"&key="+key).toString().toUpperCase().toString();postman.setGlobalVariable("strmd5",strmd5)console.log(strmd5)