每句都表示什么意思?
<script type="text/javascript"> var index = 0; var imgnum = $('.banner ul li').length; var nmun=''; var imgwidth = $('.banner ul li').width(); var allimgwidth = imgwidth*imgnum; $('.banner ul').css('width',allimgwidth); $('.banner').hover(function(){ clearInterval(p); $('.banner .u').fadeIn(); },function(){ pic(); $('.banner .u').fadeOut(); }); function pic(){ p=setInterval(function(){ index++; if(index>=imgnum){ index=0; } selectimg(index); },3000); } function selectimg(index){ $('.banner ul').animate({'margin-left':'-' + imgwidth*index + 'px'},600); $('.con a').eq(index).addClass('active').siblings('a').removeClass('active'); } $('.banner .left').click(function(){ index-=1; if(indeximgnum-1){ index=0; } selectimg(index); }); for(var ni=0;ni |