JS let us learn from the basics together, let’s learn bit by bit
The following is the code I wrote, and everyone can watch and learn from it! ! !
js demo
<script><br>
document.write('<table border="1" width="100px" align="center">');<br>
var i=0;<br>
while(i<100){<br />
if(i ==0){<br />
if(i ==0)<br />
bg="#cccccc";<br />
else<br />
bg="#ffffff";<br />
document.write('<tr onmouseover="show(this)" onmouseout="onshow(this)" bgcolor="' bg '">');<br>
}<br>
document.write('<td>' i '</td>');<br>
i ;<br>
if(i ==0){<br>
document.write("<tr>");<br>
}<br>
}<br>
document.write("</table>")<br>
var ys=null;<br>
function show(obj){<br>
ys=obj.bgColor;<br>
obj.bgColor="red";<br>
}<br>
function onshow(obj){<br>
obj.bgColor=ys;<br>
}<br>
</script>
The function is very simple, but very practical. Friends, please refer to it.