声明变量
2011-07-12 10:06 鹏雕 阅读(157) 评论(0) 编辑 收藏 举报 <script language="javascript" type="text/javascript">
//声明多个变量
//思考x y的值
var x, y, z = 10;
document.write(x + "<br/>"); //output "undefined"
document.write(y + "<br/>"); //output "undefined"
document.write(z); //output "10"
</script>
