好的我有代码:
$(document).ready(function(){
if(selected == 0){
$(".color").mouseover(function(){
var image = $(this).children('img').attr('src');
$(this).children('img').css("border", "2px solid #000000");
$("#itemMainImg").attr("src", image);
});
$(".color").mouseout(function(){
$(this).children('img').css("border", "none");
})
$(".color").click(function(){
var image = $(this).children('img').attr('src');
console.log("worked");
$("#itemMainImg").attr("src", image);
$(this).children('img').css("border", "2px solid #000000");
selected = 1;
console.log(selected);
colorSelected = $(this).children('img').attr('src');
});
}
else{
$(".color").click(function(){
var image = $(this).children('img').attr('src');
if(image == colorSelected){
$("#itemMainImg").attr("src", image);
if($(this).children('img').css("border") == "none"){
$(this).children('img').css("border","2px solid #000000");
}
else{
$(this).children('img').css("border", "none");
selected = 0;
}
}
});
}
});
我有一个全局变量,var selected = 0;
和var colorSelected ="&#34 ;;
html看起来像这样:
<div id="itemHead">
<div id="itemMain">
<h1 id="itemH1">Demo Item by Demo</h1>
<img id="itemMainImg" src="photos/Carpets/ApolloBoxwood - Copy.jpg">
</div>
<div id="itemColors">
<div>
<p id="colorsP">Available Colours</p>
</div>
<div>
<div class="color">
<img class="colorImg" src="photos/Carpets/ApolloBoxwood - Copy.JPG" alt="Apollo Plus Boxwood">
<p class="colorPara">Boxwood</p>
</div>
<div class="color">
<img class="colorImg" src="photos/Carpets/ApolloCinderGrey - Copy.JPG" alt="Apollo Plus Cinder Grey">
<p class="colorPara">Cinder Grey</p>
</div>
<div class="color">
<img class="colorImg" src="photos/Carpets/ApolloCorkOak - Copy.JPG" alt="Apollo Plus Cork Oak">
<p class="colorPara">Cork oak</p>
</div>
</div>
</div>
由于某种原因,当我点击.color divs时,所选值被更改为1,但该函数仍然像值为0.因此在页面var selected设置为1,但是if的第一部分声明仍然有效。我不认为应该通过点击改变全局变量。
答案 0 :(得分:1)
您正在根据selected
的值绑定文档就绪的点击事件 - 只有代码中的第一个点击事件才会被绑定到元素,因为初始值为零。您需要将逻辑移入click函数,以便每次运行函数时都检查该值:
$(document).ready(function(){
$(".color").click(function(){
if(selected == 0){
/* do something if value is zero */
} else {
/* do something if value is NOT zero */
}
});
});