代码:
View Code
<!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"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>jQuery实现购物车物品数量的加减</title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> <script> $(function(){ var t = $("#text_box"); $("#add").click(function(){ t.val(parseInt(t.val())+1) setTotal(); }) $("#min").click(function(){ t.val(parseInt(t.val())-1) setTotal(); }) function setTotal(){ $("#total").html((parseInt(t.val())*3.95).toFixed(2)); } setTotal(); }) </script> </head> <body> <p>单价:3.95</p> <input id="min" name="" type="button" value="-" /> <input id="text_box" name="" type="text" value="4" /> <input id="add" name="" type="button" value="+" /> <p>总价:<label id="total"></label></p> </body> </html>
jQuery实现购物车物品数量的加减
单价:3.95
总价: