h 没做完提交什么啊
<ul>
<li><input type="button" value="-" class="btnf"></li>
<li><input type="text" value="1" size="5" class="num"></li>
<li><input type="button" value="+" class="btnz"></li>
</ul>
<div class="clear"></div>
<hr>
<ul class="shop">
<li><input type="button" value="-" class="btnf"></li>
<li><input type="text" value="1" size="5" class="num"></li>
<li><input type="button" value="+" class="btnz"></li>
</ul>
<div class="clear"></div>
<hr>
<ul class="shop">
<li><input type="button" value="-" class="btnf"></li>
<li><input type="text" value="1" size="5" class="num"></li>
<li><input type="button" value="+" class="btnz"></li>
</ul>
<div class="clear"></div>
<hr>
<ul class="shop">
<li><input type="button" value="-" class="btnf"></li>
<li><input type="text" value="1" size="5" class="num"></li>
<li><input type="button" value="+" class="btnz"></li>
</ul>
window.onload=function(){
var totals=document.getElementsByClassName('total'),
units=document.getElementsByClassName('unit'),
btnfs=document.getElementsByClassName('btnf'),
nums=document.getElementsByClassName('nums'),
btnzs=document.getElementsByClassName('btnz'),
index=0;
for(var i=0;i<checks.length;i++){
btnzs[i].onclick=function(){
nums[i].value++;
}
}
}
帮我看下谢谢了
