关于淘宝商品属性筛选
淘宝某一类商品属性的筛选,例如:
http://list.taobao.com/market/nvbao2011a.htm?spm=a2106.m894.1000190.1&promoted_service4=4&ratesum=6%2C7%2C8%2C9%2C10%2C11%2C12%2C13%2C14%2C15%2C16%2C17%2C18%2C19%2C20&cat=50072721&isprepay=1&user_type=0&random=false&viewIndex=1&yp4p_page=0&commend=all&atype=b&style=grid&olu=yes&isnew=2&mSelect=false&smc=1
前台js效果实现问题不大,关键是与后台交互:
一、后台我控制不了,因为是定制型的开发;
二、如果不涉及后台,那么通过什么方法完成筛选?我想到了两点:
①:jquery+ajax②:jquery模拟表单提交,但涉及到数据库叠加查询,请教叠加查询sql
------解决方案--------------------
多个条件,slelect * ...... where ... and ...........连接就是了。
------解决方案--------------------
你是负责前台开发吧(JS+CSS+HTML)
其实你只有把页面设计出来就可以了,剩下的需要跟后台配合了
------解决方案--------------------
这个应该不是你负责的呀~~
------解决方案--------------------

实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。

修改方法:1、用attr(),可设置被选元素的指定属性的值,语法“元素对象.attr("title","新值")”,新值将覆盖旧值;2、用prop(),可为匹配元素集合设置指定属性值,语法“元素对象.prop("title","新值")”。


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