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先去了解下什么是options請(qǐng)求，為什么會(huì)有options請(qǐng)求，這是通常設(shè)置Cors進(jìn)行跨域操作都會(huì)出現(xiàn)的一個(gè)請(qǐng)求，屬于正常請(qǐng)求。

@media only screen and (device-width:1920px){

愛的點(diǎn)點(diǎn)滴滴

}

[iscroll][1]

路由沒錯(cuò)的話，activated觸發(fā)需要在router-view外套層keep-alive，有加么？
watch 不清楚

html-loader 是可以加載圖片的，貼一下你的圖片加載的代碼

HTML:

<div class="gradient-wrapper">
  <img src="demo.png">
</div>

CSS:

@keyframes wrapper-gradient {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(0);
  }
}
@keyframes img-gradient {
  0% {
    transform: translateY(100%);
  }
  100% {
    transform: translateY(0);
  }
}
.gradient-wrapper {
  display: inline-block;
  overflow: hidden;
  animation: wrapper-gradient 2s linear;
}
.gradient-wrapper>img {
  animation: img-gradient 2s linear;
}

var 改成let

this.$refs.listGroup 是一個(gè)數(shù)組, 可以循環(huán)加class

let data=[
   {name:"小明",status:false},
   {name:"小紅",status:false},
   {name:"小張",status:true},
   {name:"小墻",status:false},
   {name:"小粉",status:false},
   {name:"小軍",status:false},
   {name:"小鈺",status:false},
   {name:"小訪",status:true},
   {name:"小源",status:false},
   {name:"小方式",status:false},
   {name:"小佛",status:false},
   {name:"小付款",status:false},
   {name:"小哦咯",status:false},
   {name:"小來了",status:false},
  ];
let obj= {};
data.map(d=>obj[d.name]=d.status);
   console.log(obj);

var selected = {}, i = 0;
data.forEach(function(item){
    selected['your series name'] = item.length > 0 && ++i && i < 4
})
//這里只會(huì)抓取有數(shù)據(jù)的series，如果16條series都沒有數(shù)據(jù)，那么都不展示，

是不是權(quán)限問題導(dǎo)致的？可以檢查下設(shè)置里面的app權(quán)限是不是打開了網(wǎng)絡(luò)。

<style>

#parent{
    position:relative;
    width:100px;
    height:100px;
    background:#f99;
}
#children{
    position: absolute;
    width:100px;
    height:100px;
    right:-100%;
    top:0;
    background:#99f;
    display:none;
}

</style>
<div id="parent">

<div id="children"></div>

</div>
<script>

var eParent = document.getElementById('parent')
var eChildren = document.getElementById('children')

eChildren.onmouseover =  eParent.onmouseover = function(e){
    eChildren.style.display="block"
}
eChildren.onmouseout =  eParent.onmouseout = function(e){
    eChildren.style.display="none"
}

</script>

是指這樣嗎

-------------------------------------更新

<style>

*{
    margin:0;
    padding:0;
}
ul{
    list-style: none;
}
.item{
    position:relative;
    width:100px;
    height:100px;
    background:#f99;
    border:1px solid #ccc;
    cursor:pointer;
}
.item div{
    position: absolute;
    width:100px;
    height:100px;
    right:-100%;
    top:0;
    background:#99f;
    display:none;
}

</style>
<ul id="list">

<li class="item">
    <div></div>
</li>
<li class="item">
    <div></div>
</li>
<li class="item">
    <div></div>
</li>

</ul>
<script src="https://cdn.bootcss.com/jquer...;></script>
<script>

$('.item').on('mouseover',function(){
    $(this).find('div').css('display','block')
})
$('.item').on('mouseout',function(){
    $(this).find('div').css('display','none')
})

</script>

*{
    margin:0;
    padding:0;
}
ul{
    list-style: none;
    position:relative;
    width:500px;
    margin:0 auto;
    height:500px;
}
.item{
    position:relative;
    width:100px;
    height:100px;
    background:#f99;
    border:1px solid #ccc;
    cursor:pointer;
    float:left;
}
.hidden{
    position: absolute;
    width:100px;
    height:100px;
    background:#99f;
    display:none;
    top:100%;
    left:0;
}
.bu{
    display:block;
    width:100%;
    height:100%;
}

</style>
<ul id="list">

<li class="item">
    <a class="bu" href="www.baidu.com"></a>
    <div class="hidden"></div>
</li>
<li class="item">
    <a class="bu"></a>
    <div class="hidden"></div>
</li>
<li class="item">
    <a class="bu"></a>
    <div class="hidden"></div>
</li>

</ul>
<script src="https://cdn.bootcss.com/jquer...;></script>
<script>

$('.item').on('mouseover',function(){
    $(this).find('.hidden').css('display','block')
})
$('.item').on('mouseout',function(){
    $(this).find('.hidden').css('display','none')
})

</script>

可以試試用:nth-child（X）可以實(shí)現(xiàn)第X個(gè)的樣式，比如

你先把數(shù)組拿出來，進(jìn)行增刪操作完之后再進(jìn)行setData

55555555555

https://developer.mozilla.org...
看看replaceState() 方法

抓包看一下接口有沒有請(qǐng)求，或者讓ios寫一個(gè)js加載的ready事件回調(diào)去執(zhí)行h5的get事件

e.nativeEvent.stopImmediatePropagation();方法是防止對(duì)事件流中當(dāng)前節(jié)點(diǎn)中和所有后續(xù)節(jié)點(diǎn)中的事件偵聽器進(jìn)行處理。此方法會(huì)立即生效，并且會(huì)影響當(dāng)前節(jié)點(diǎn)中的事件偵聽器。而這里只需要對(duì)當(dāng)前事件偵聽器進(jìn)行處理，所以這里不需要，注釋掉即可，還有綁定需要滾動(dòng)的那個(gè)div的對(duì)象，綁定個(gè)touchmove事件中e.stopPropagation()防止冒泡即可。

style.height獲取不了的，你高度沒寫在行間，也就是style里，用offsetHeight

遍歷匹配