function getCurrentDate() {
  var date = new Date();
  var year = date.getFullYear();        //年
  var month = date.getMonth() + 1;      //月
  var day = date.getDate();            //日
  var hour = date.getHours();           //时
  var minute = date.getMinutes();       //分
  var second = date.getSeconds();       //秒
  var currentDateStr = year+"年";
  if(month < 10) {
    currentDateStr += "0";
  }
  currentDateStr += month + "月";
  if(day < 10) {
    currentDateStr += "0";
  }
  currentDateStr += day + "日";
  if(hour < 10) {
    currentDateStr += "0";
  }
  currentDateStr += hour + "时";
  if (minute < 10) {
    currentDateStr += "0"; 
  }
  currentDateStr += minute + "分";
  if (second < 10) {
    currentDateStr += "0"; 
  }
  currentDateStr += second + "秒";
  console.log(currentDateStr)//2020年04月18日17时03分03秒
}