关于SimpleTemplate Engine的一点简介. for Zhu Mengying

intro2stpl

文档参见 http://bottlepy.org/docs/dev/stpl.html

如下是那个SimpleTemplageEngine的一个示例
如下文件被保存在template/flight/oneway.tpl 其中单个百分号开头的行是内嵌的python代码
----start of template/flight/oneway.tpl-------
Oneway flight~<br>
<div id="flights">
%if flights:
%   for item in flights:
<div><strong>{{item['fn']}}</strong> : {{item}}</div>
%   end
%end
</div>
end of oneway flight~<br>
----end of template/flight/oneway.tpl-------
而在控制view的Python代码中会做的事情请参见下面这个样例:
----start of piece of sample python code--------
    @app.get('/flight/oneway')
    @bottle.view(config.template_path + 'flight/oneway.tpl')
    def oneway_get():
        d = { 
            "a1": "Airport 1", 
            "a2": "Airport 2", 
            "dt1": "Datetime 1", 
            "dt2": "Datetime 2",
            "fn": "FlightNo",
        }
        return {'flights': [d, d]}
----end of piece of sample python code--------
即返回一个包含"flights"项的dict(可以认为就是JSON..)供template engine去渲染.

结果页面为如下的样子. 不过里面那些特殊符号都是用转义做的 所以看上去很乱...
-----start of the resulting page------
Oneway flight~<br>
<div id="flights">
<div><strong>FlightNo</strong> : {&#039;dt1&#039;: &#039;Datetime 1&#039;, &#039;a2&#039;: &#039;Airport 2&#039;, &#039;a1&#039;: &#039;Airport 1&#039;, &#039;dt2&#039;: &#039;Datetime 2&#039;, &#039;fn&#039;: &#039;FlightNo&#039;}</div>
<div><strong>FlightNo</strong> : {&#039;dt1&#039;: &#039;Datetime 1&#039;, &#039;a2&#039;: &#039;Airport 2&#039;, &#039;a1&#039;: &#039;Airport 1&#039;, &#039;dt2&#039;: &#039;Datetime 2&#039;, &#039;fn&#039;: &#039;FlightNo&#039;}</div>
</div>
end of oneway flight~<br>
-----end of the resulting page--------