javascript获取系统当前时间

function getCurrentDate() {

   var now = new Date();

   var dataStr = now.getFullYear() + "-";

   if (now.getMonth() + 1 < 10) {

      dataStr += "0" + (now.getMonth() + 1);

   } else {

      dataStr += (now.getMonth() + 1);

   }

   dataStr += "-";

   if (now.getDate() < 10) {

      dataStr += "0" + now.getDate();

   } else {

      dataStr += now.getDate();

   }

   dataStr += " ";

   if (now.getHours() < 10) {

      dataStr += "0" + now.getHours();

   } else {

      dataStr += now.getHours();

   }

   dataStr += ":";

   if (now.getMinutes() < 10) {

      dataStr += "0" + now.getMinutes();

   } else {

      dataStr += now.getMinutes();

   }

   dataStr += ":";

   if (now.getSeconds() < 10) {

      dataStr += "0" + now.getSeconds();

   } else {

      dataStr += now.getSeconds();

   }

   $("#showCurrentTime").text(dataStr);

}

window.setInterval("getCurrentDate()", 1000);

javascript获取系统当前时间

原文：http://hundage.blog.51cto.com/3779401/1670637