版权声明: https://blog.csdn.net/eds124/article/details/85217810
o=document.getElementsByTagName('table');
for(i=0; i<o[0].rows.length; i++){
td=o[0].rows[i].cells[3];
if(td.textContent < '2018-12-20 19:05:08'){
td.style.backgroundColor="red";
}else{
td.style.backgroundColor="green";
}
}
"green"