Question

我正在学习JavaScript并正在开发一个JavaScript函数来根据买方的类型计算折扣，即零售商/批发商＆amp;如果是现金或支票付款。这是函数

<script>
    function sell()
    {

    var gross,net,tax,discount,unitprice,quatity,select2,select3;

    unitprice=parseInt(form9.unitprice.value);
    quantity=parseInt(form9.quantity.value);
    select3=parseInt(form9.select3.value);
    select2=parseInt(form9.select2.value);
    gross=parseInt(form9.gross.value);

    gross=unitprice*quantity
    form9.gross.value=gross;
    tax=0.16*gross
    form9.tax.value=tax;

        if(select2='Cash' && select3='Retailer')
         discount=0.07*gross;

        else if(select2='Cash' && select3='Wholesaler')
          discount=0.1*gross;

        else if(select2='Check')
          discount=0*gross; 
    form9.discount.value=discount;



    net=(gross-(discount+tax));
    form9.net.value=net;

    }
    </script>

我为买家类型创建了一个下拉菜单，命名为select2

<select name="select2">
          <?php
do {  
?>
          <option value="<?php echo $row_rsCustomercategory['type']?>"><?php echo $row_rsCustomercategory['type']?></option>
          <?php
} while ($row_rsCustomercategory = mysql_fetch_assoc($rsCustomercategory));
  $rows = mysql_num_rows($rsCustomercategory);
  if($rows > 0) {
      mysql_data_seek($rsCustomercategory, 0);
      $row_rsCustomercategory = mysql_fetch_assoc($rsCustomercategory);
  }
?>
        </select>

销售类型的选择菜单是select3

<select name="select3" id="select3">
        <?php
do {  
?>
        <option value="<?php echo $row_rsSaletype['type']?>"><?php echo $row_rsSaletype['type']?></option>
        <?php
} while ($row_rsSaletype = mysql_fetch_assoc($rsSaletype));
  $rows = mysql_num_rows($rsSaletype);
  if($rows > 0) {
      mysql_data_seek($rsSaletype, 0);
      $row_rsSaletype = mysql_fetch_assoc($rsSaletype);
  }
?>
      </select>

现金销售是7％零售商和10％批发商的折扣，没有折扣支票。

问题在于：在浏览器中查看并单击＆＃34;计算＆＃34;按钮没有任何反应为什么是这样？我将不胜感激任何帮助。

基于买方类型的折扣计算

0 个答案: