jQuery实现购物车多物品数量的加减+总价+删除计算

浏览数：24 / 时间：2015年06月09日

 <?php
session_start();
 ?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<head> 
<title>jQuery实现购物车多物品数量的加减+总价+删除计算</title> 
<script type="text/javascript" src="jquery-1.8.3.min.js"></script> 
<script> 
$(function(){ 
    var _url = $(‘#siteurl‘).val();
    $(‘.delete‘).click(function(){
      var t=$(this).parent(‘td‘).parent(‘tr‘);
      var tt=$(this).parent(‘td‘).find(‘input[class*=text_box]‘);
      tt.val(0);
        

      setTotal();
      t.hide();
    });

    $(".add").click(function(){ 
        var t=$(this).parent(‘td‘).find(‘input[class*=text_box]‘); 
        t.val(parseInt(t.val())+1); 
        setTotal(); 
    }); 

    $(".min").click(function(){ 
        var t=$(this).parent(‘td‘).find(‘input[class*=text_box]‘); 
        t.val(parseInt(t.val())-1) 
        if(parseInt(t.val())<1){ 
            t.val(1); 
        } 

    setTotal(); 
  });

  $(‘.text_box‘).keyup(function(){
    setTotal();
  });
  
  function setTotal(){ 
    var s=0; 
    $("#tab td").each(function(){ 
      var numbers = parseInt($(this).find(‘input[class*=text_box]‘).val());
      if($.isNumeric(numbers))
      {
            numbers = parseInt(numbers);
      }else
     {
        numbers = 1;
     }
      $(this).find(‘input[class*=text_box]‘).val(numbers);
      s += numbers*parseFloat($(this).find(‘span[class*=price]‘).text()); 

        // bof 用ajax在_url中删除指定的购物车中$_SESSION相关信息
        var pid =$(this).find(‘input[class*=product_id]‘);
        $.ajax({
            url:_url,
      type: ‘post‘,
            data:{proid : pid.val()},
            success: function(data){ 
                // 回应    
            }
        }); 
        // end
    }); 
    $("#total").html(s.toFixed(2)); 
  } 
 // setTotal(); 

}); 
</script> 
</head> 
<body> 
<form action="./myform.php" method="post">
<input type="hidden" name="siteUrl" id="siteurl" value="siteUrl.php" />
<table id="tab"> 
<tr> 
<td> 
<span>单价:</span><span class="price">1.50</span> 
<input class="product_id" type="hidden" name="product_id" value="value" />
<input class="min" name="" type="button" value="-" /> 
<input class="text_box" name="name2" type="text" value="1" /> 
<input class="add" name="" type="button" value="+" /> 
<a href="javascript:void(0);" class="delete">删除</a>
</td> 
</tr> 
<tr> 
<td> 
<span>单价:</span><span class="price">3.95</span> 
<input class="min" name="" type="button" value="-" /> 
<input class="text_box" name="name1" type="text" value="1" /> 
<input class="add" name="" type="button" value="+" /> 
<a href="javascript:void(0);" class="delete">删除</a>
</td> 
</tr> 
</table> 
<input type="submit" name="submit" value="submit" />
</form>
 总价：<label id="total"></label>  
 <div id="product_id_value"><?php print_r($_SESSION); ?></div>
</body> 
</html>