按关键词搜索 获取商品详情 商品评论销量商品类目 卖家订单接口等

接口通常指的是日常生活中用到的接口，主要是指物品上的外接接口，以手机充电口举例，有Micro USB接口、type-c接口，还有Lightning接口（ios设备），这三个接口就是一个接口定义，规定了这个充电口的形状、大小。这就是接口。

API是Application Program Interface的缩写，叫做应用程序接口，是一组定义、程序及协议的集合，主要功能是提供通用功能集，实现计算机软件之间的相互通信。我们通过API接口可以实现特定的功能，而不需要了解其内部实现细节。可以把API接口理解为是特定服务的一种封装，将服务封装起来提供给他人调用，这样一来很多功能不需要从新开发。

比如，我们想要知道一周天气如何，如果由自己来实现这个功能很难，因为天气数据只有气象部门才知道。那该如何知道天气信息呢？气象部门提供数据API给我们使用，我们只要输入地区就会知道该地区一周的天气情况，但我们并不需要了解这天气预报是如何实现的。API调取数据也是同样的道理。

以淘宝关键字接口为例：

1、请求参数

请求参数：q=女装&start_price=0&end_price=0&page=1&cat=0&discount_only=&sort=&page_size=&seller_info=&nick=&ppath=&imgid=&filter=

参数说明：q:搜索关键字

cat:分类ID

start_price:开始价格

end_price:结束价格

sort:排序[bid,_bid,bid2,_bid2,_sale,_credit]

(bid:总价,bid2:商品价格,sale:销量,credit信用,加_前缀为从大到小排序)

page:页数

2、响应参数

3、通过关键字就可以搜索到你想要的数据，下面是测试代码显示结果：

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注册可以赠送测试，亲测有效：获取Key和secret