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数组解决

WBOY
WBOYOriginal
2016-06-23 14:05:03880browse

单价:
数量:
总价:
<script> <br /> function fx(){ <br /> var s=document.getElementById('danjia[]').value; <br /> if(!s)return; <br /> s=parseInt(s); <br /> var c=document.getElementById('shuliang[]').value; <br /> c=parseInt(c); <br /> if(!c)return; <br /> document.getElementById('zongjia').innerHTML=Math.round(s*c) <br /> } <br /> </script>

我这个是数组,怎么让总价放到对应的总价td里


回复讨论(解决方案)

 var s=document.getElementById('danjia[]').value;
应为
 var s=document.getElementById('danjia').value;

 var c=document.getElementById('shuliang[]').value;
应为
 var c=document.getElementById('shuliang').value;

你用的是getElementById();括号里应该写的是属性id,而不是用的getElementsByName();

楼上两位帮我解决了问题,但是总计怎么计算?就是说所有的总价和值。求解,

还求解?上面不是帮你解决了吗?

楼上两位帮我解决了问题,但是总计怎么计算?就是说所有的总价和值。求解,
楼主不怎么喜欢用jquery的
如果喜欢用的话可以这样写 var zj;
zj=$('#danjia').val()*$('#shuliang').val();
$('#zongjia').text(zj);
希望回答对你有帮助

jq岂不快哉

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