url地址形式的传参格式拼接

例子一:

var gid=pid=pizi=sn=newsn=sn_price=city_id=123;
var params = 'gid=' +123;
          params += '&pid=' + pid;
          params += '&pizi=' + pizi;
          params += '&sn=' + sn;
          params += '&newsn=' + newsn; //暂时没有用
          params += '&sn_price=' + sn_price;
          params += '&city_id=' + city_id;
var url="product_sn.php?act=add_sn&" + params;
console.log(url);    

运行结果

product_sn.php?act=add_sn&gid=123&pid=123&pizi=123&sn=123&newsn=123&sn_price=123&city_id=123

例子二:

<div class="form-div">
    <form action="javascript:searchproduct();" name="addForm"  id="addForm">
    <!-- 分类 -->
    选择城市
    <select name="city" id="city" onchange="get_city();">
            <option value="-1">所在城市</option>
            {html_options options=$goods_city}
    </select>
    <select name="sn_gid" id="sn_gid" onchange="get_products();" style="135px;">
    <option value="0">请选择商品</option>
    {foreach from=$goods_list item=goods}
    <option value="{$goods.goods_id}">{$goods.goods_sn}  {$goods.goods_name}</option>
    {/foreach}
    </select>
    <!-- 商品:<input type="text" name="sn_name" value="" size="12" /> -->

    <select name="sn_pid" id="sn_pid">
    <option value="0">请选择规格</option>
    {foreach from=$products item=product}
    <option value="{$product.product_id}">{$product.product_name}</option>
    {/foreach}
    </select>

    <select name="sn_pizi" id="sn_pizi">
    <option value="0">请选择坯子</option>
    {foreach from=$pizi_list item=pizi}
    <option value="{$pizi.title}">{$pizi.title}</option>
    {/foreach}
    </select>
    
    <!-- sn_type --><input type="hidden" name="sn_type" id="sn_type" value="1" size="15" />
    <!-- 半成品品号 --><input type="hidden" name="semi_sn" value="" size="5" />
    <!-- 半成品品名 --><input type="hidden" name="sn_name" value="" size="5" />
    成品品号<input type="text" name="sn_sn" value="" size="15" />
    <!-- 新货品 --><input type="hidden" name="sn_newsn" value="" size="5" />
    货品价格<input type="text" name="sn_price" value="" size="5" />
    <input type="button" value="添加成品" class="button" onclick="add_sn();" />
    <input type="submit" value="搜索" class="button"/>
    </form>
    <!-- 批量导入对应关系 -->
    <!--  <form action="product_sn.php?act=batchAddGoods_relate" method="post" enctype="multipart/form-data" name="excel" target="_blank">
        <input type="file" name="file" value="">
        <input type="submit" value="Excel导入批量导入对应关系" class="button" />
     </form> -->
     <!-- 批量导入对应关系 -->
</div>

<script type="text/javascript">
 //添加成品的品号
function add_sn()
{
  var city_id = document.forms['addForm'].elements['city'].value;       //城市id
  var gid = document.forms['addForm'].elements['sn_gid'].value;         //商品id
  var pid = document.forms['addForm'].elements['sn_pid'].value;         //规格id
  var pizi = document.forms['addForm'].elements['sn_pizi'].value;       //piziid
  var sn = document.forms['addForm'].elements['sn_sn'].value;           //product表里的sn品号
  var sn_price = document.forms['addForm'].elements['sn_price'].value;  //商品价格
  var newsn = document.forms['addForm'].elements['sn_newsn'].value;     //暂时没有用
  if(city_id < 0)
  {
    alert('城市不能为空');
    return false;
  }
  if(gid == '' || gid < 1)
  {
    alert('商品不能为空');
    return false;
  }
  if(sn == '')
  {
    alert('商品成品号不能为空');
    return false;
  }

  var params = 'gid=' +gid;
      params += '&pid=' + pid;
      params += '&pizi=' + pizi;
      params += '&sn=' + sn;
      params += '&newsn=' + newsn; //暂时没有用
      params += '&sn_price=' + sn_price;
      params += '&city_id=' + city_id;

 var url="product_sn.php?act=add_sn&" + params;    
 $.get(url,function(result){
      var data = result;
      console.log(data);
      if(data.error != 0){
        alert(data.msg);
      }else{
        listTable.loadList();
      }
  },'json');
}
</script>