js 同名数组对象的选择
<fieldset name="onevar[]">
<div class="field-group">
<span class="required title" for="idc_id"><b><font color=red>*</font><span class="details"> 选择套餐: </span></b></span>
<select name='select_tc[]' class="xxlarge" id="select_tc[]" style="margin-left:10px;" onchange="select_tc_ch(this)" >
<option value='2|2|100'>标准开发机 （2 cpu， 2G ram， 100G disk）</option>
<option value='2|4|100'>高配开发机 （2 cpu， 4G ram， 100G disk）</option>
<option value='0'>自定义</option>
</select>
</div>
<div class="field-group">
<span class="required title" for="cpu_num"><b><font color=red>*</font>CPU核（个）:</b></span>
<input name="cpu_num[]" type="text" class="mini-40" value="2"/>
<span class="required title" for="mem_num"><b><font color=red>*</font>内存（G）:</b></span>
<input name="mem_num[]" type="text" class="mini-40" value="2"/>
<span class="required title" for="disk_num"><b><font color=red>*</font>硬盘（G）:</b></span>
<input name="disk_num[]" type="text" class="mini-40" value="100"/>
<span class="required title" for="other"> <b>特殊需求:</b></span>
<input name="conf_memo[]" type="text" class="large" style="width:251px;"/>
</div>
</fieldset>
<fieldset name="onevar[]">
<div class="field-group">
<span class="required title" for="idc_id"><b><font color=red>*</font><span class="details"> 选择套餐: </span></b></span>
<select name='select_tc[]' class="xxlarge" id="select_tc[]" style="margin-left:10px;" onchange="select_tc_ch(this)" >
<option value='2|2|100'>标准开发机 （2 cpu， 2G ram， 100G disk）</option>
<option value='2|4|100'>高配开发机 （2 cpu， 4G ram， 100G disk）</option>
<option value='0'>自定义</option>
</select>
</div>
<div class="field-group">
<span class="required title" for="cpu_num"><b><font color=red>*</font>CPU核（个）:</b></span>
<input name="cpu_num[]" type="text" class="mini-40" value="2"/>
<span class="required title" for="mem_num"><b><font color=red>*</font>内存（G）:</b></span>
<input name="mem_num[]" type="text" class="mini-40" value="2"/>
<span class="required title" for="disk_num"><b><font color=red>*</font>硬盘（G）:</b></span>
<input name="disk_num[]" type="text" class="mini-40" value="100"/>
<span class="required title" for="other"> <b>特殊需求:</b></span>
<input name="conf_memo[]" type="text" class="large" style="width:251px;"/>
</div>
</fieldset>
通过选择套餐，选中同块的元素
function select_tc_ch(selectobj)
{
pobj = selectobj.parentElement;//这是div group
ppobj = pobj.parentElement;//这就是所在的onevar
console.log(ppobj);
initval = selectobj.value;
arr = initval.split("|");
cpu_num="";
mem_num="";
disk_num="";
if(arr.length>=3)
{
cpu_num=arr[0];
mem_num=arr[1];
disk_num=arr[2];
}
//转化成jquery目标
jselectobj = $(ppobj);
//onevar旗下的cpu_num
obj_cpu_num = $("input[name='cpu_num[]']", jselectobj);
obj_mem_num = $("input[name='mem_num[]']", jselectobj);
obj_disk_num = $("input[name='disk_num[]']", jselectobj);
obj_cpu_num.val(cpu_num);
obj_mem_num.val(mem_num);
obj_disk_num.val(disk_num);
}