最终效果如图：
用到的知识：Python Bottle HTML Javascript JQuery Bootstrap AJAX 当然还有 linux
我去，这么多……我还是一点一点说起吧……
先贴最终的源代码：
#!/usr/bin/env python3from bottle import get,post,run,request,template@get("/")def index(): return template("index")@post("/cmd")def cmd(): print("按下了按钮: "+request.body.read().decode()) return "OK"run(host="0.0.0.0") 没错，就10句，我一句一句解释：
1. # !/usr/bin/env python3 ，告诉shell这个文件是Python源代码，让bash调用python3来解释这段代码
2. from bottle import get,post,run,request,template ，从bottle框架导入了我用到的方法、对象
下边几句是定义了2个路由，一个是“/”一个是“/cmd”,前者是get类型（用@get装饰），后者是POST类型（用的@post装饰）
第一个路由很简单，就是读取index模版（模版就是个html啦）并发送到客户端（浏览器），因为路径是“/”也就是比如树莓派的IP地址是：192.168.0.10
那用 http://192.168.0.10:8080 就访问到了我们的"/”路由（bottle默认端口是8080）
同理，第二个路由的路径是“/cmd”也就是访问 http://192.168.0.10:8080/cmd 就访问到了第二个路由
最后一句： run(host = " 0.0.0.0 " )就是调用bottle的run方法，建立一个http服务器，让我们能通过浏览器访问我们的界面。
下边我详细的解释一下这些代码的作用：
第一个路由的作用就是扔给浏览器一个HTML（index.tpl）文档，显示这个界面：
这个文件的源代码如下：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>遥控树莓派</title> <link href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" media="screen"> <script src="http://code.jquery.com/jquery.js"></script> <style type="text/css"> #up { margin-left: 55px; margin-bottom: 3px; } #down { margin-top: 3px; margin-left: 55px; } </style> <script> $(function(){ $("button").click(function(){ $.post("/cmd",this.id,function(data,status){}); }); }); </script></head><body><div id="container" class="container"> <div> <button id="up" class="btn btn-lg btn-primary glyphicon glyphicon-circle-arrow-up"></button> </div> <div> <button id='left' class="btn btn-lg btn-primary glyphicon glyphicon-circle-arrow-left"></button> <button id='stop' class="btn btn-lg btn-primary glyphicon glyphicon-stop"></button> <button id='right' class="btn btn-lg btn-primary glyphicon glyphicon-circle-arrow-right"></button> </div> <div> <button id='down' class="btn btn-lg btn-primary glyphicon glyphicon-circle-arrow-down"></button> </div></div><script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script></body></html> 这个内容有点多，不过很简单，就是引用了jquery bootstrap这两个前端框架，加了5个按钮(
之间的代码)。当然我用了bootstrap内置的上下左右停止这几个图标，这5个按钮的id分辨定义成up，down，left，right，stop，然后写了如下的关键代码： $(function(){ $("button").click(function(){ $.post("/cmd",this.id,function(data,status){}); }); }); 没错，就这三句代码……
第1，2行给所有的按钮（button）绑定了一个点击的事件，第三行调用jquery的post方法把this.id(被单击按钮的id)，发送到“/cmd”这个路径下，这时，我们python代码的第二个路由起作用了，接收到了网页上被单击按钮的id，并打印出了“按下了按钮： XXX”
当然，在这里写几个if语句判断，就可以按照实际的需求做一些实际的控制了，嗯，比如调用wiringpi2 for python控制树莓派的GPIO。
完整的源代码如下（自带了bottle框架，解压后直接运行就好）
http://pan.baidu.com/s/1qWYPHQs
post by yafeng
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