请问这段代码的作用是什么,请讲解一下带颜色的代码的作用, if(day.length>1) { var first =day.substring(0,1); var second = day.substring(1,2); document.getElementById("divDay1").innerHTML=first; document.getElementById("divDay2").innerHTML=day; document.getElementById("divH").innerHTML=hour; document.getElementById("divM").innerHTML=minute; document.getElementById("divS").innerHTML=second;
if(day.length>1)
{
var first =day.substring(0,1);
var second = day.substring(1,2);
document.getElementById("divDay1").innerHTML=first;
document.getElementById("divDay2").innerHTML=day;
document.getElementById("divH").innerHTML=hour;
document.getElementById("divM").innerHTML=minute;
document.getElementById("divS").innerHTML=second;
}
else
{
document.getElementById("divDay1").innerHTML="";
document.getElementById("divDay2").innerHTML=day;
document.getElementById("divDay2").innerHTML=day;
document.getElementById("divH").innerHTML=hour;
document.getElementById("divM").innerHTML=minute;
document.getElementById("divS").innerHTML=second;
} 非常感谢
然后在 divDay1 中显示出来。
截取1个字符
document.getElementById("divDay1").innerHTML=first; 把内容显示到divday1中