<script type="text/javascript">
$(document).ready(function(){
// part_one
$(".pic_demo").one("mouseover", function(event){
$(".click_me").fadeIn(500);
event.stopPropagation();
});
$(".pic_demo").one("mouseout" , function(event){
$(".click_me").fadeOut(250);
event.stopPropagation();
});
//part_one
//part_two
$(".pic_demo").click(function(event){
$(this).animate({"width":"189px","height":"280px","opacity":"0.5","margin-left":"-121"} , 500)
.animate({"width":"230px","height":"340px","opacity":"1","margin-left":"-121"} , 200)
event.stopPropagation();
$(".pic_demo").one("mouseover", function(event){
$(".click_me_again").fadeIn(500);
event.stopPropagation();
});
$(".pic_demo").one("mouseout" , function(event){
$(".click_me_again").fadeOut(250);
event.stopPropagation();
});
});
//part_two
//part_three
$(".pic_demo").dblclick(function(event){
$(this).animate({"width":"432px","height":"640px","opacity":"1","margin-left":"-231"} , 500)
.animate({"width":"230px","height":"340px","opacity":"1","margin-left":"-121"} , 200)
event.stopPropagation();
});
//part_three
});
</script> 结果，不尽如人意啊，第一个单击的提示，确实只显示了一次，以后再不显示了。但是第二个提示，死了活了都要显示，没招，自己没经验，只能四处求助，经过别人指点，然后自己摸索，算是满足最初的设想。更新JS代码如下：<script type="text/javascript">
var count_number = 0 ;
$(document).ready(function(){
// part_one
$(".pic_demo").one("mouseover", function(event){
$(".click_me").fadeIn(500);
event.stopPropagation();
$(".pic_demo").one("mouseout" , function(event){
$(".click_me").fadeOut(250);
event.stopPropagation();
});
});
//part_one
//part_two
$(".pic_demo").click(function(event){
$(this).animate({"width":"189px","height":"280px","opacity":"0.5","margin-left":"-121"} , 500)
.animate({"width":"230px","height":"340px","opacity":"1","margin-left":"-121"} , 200)
event.stopPropagation();
if ( count_number == 0) {
$(".pic_demo").one("mouseover", function(event){
$(".click_me_again").fadeIn(500);
event.stopPropagation();
$(".pic_demo").one("mouseout" , function(event){
$(".click_me_again").fadeOut(250);
event.stopPropagation();
});
});
count_number = 1;
}
});
//part_two
//part_three
$(".pic_demo").dblclick(function(event){
$(this).animate({"width":"432px","height":"640px","opacity":"1","margin-left":"-231"} , 500)
.animate({"width":"230px","height":"340px","opacity":"1","margin-left":"-121"} , 200)
event.stopPropagation();
});
//part_three
});
</script> 
上一篇今儿个报到了
