MATLAB实现写谷歌翻译的小爬虫

本文主要就是对比用python写的一个谷歌翻译的爬虫，分享一下MATLAB代码，主要使用的函数就是urlread和regexp。

先看一下效果：

代码是这个样子的（两个文件一个主文件：Google_translate.m）一个函数文件Translate_mean.m：我用的全局变量传递参数所以都没有输入。这个是主函数Google_translate.m的内容：

function Google_translateglobal Source_first Translate_two Source_Content Translate_Content global Langurage fh = figure('name','Google Translate');Langurage = {'zh-CN','en','ja','fr','de'};Source_first = uicontrol('parent', fh, 'style', 'popupmenu',...'units','normalized',...'position',[0.4, 0.7 0.1, 0.1],...'string',Langurage);Translate_two = uicontrol('parent', fh, 'style', 'popupmenu',...'units','normalized',...'position',[0.55, 0.7 0.1, 0.1],...'string',Langurage);Source_Content = uicontrol('parent', fh, 'style', 'edit',...'units','normalized',...'position',[0.1, 0.1, 0.4, 0.6],...'HorizontalAlignment','left',...'Max',2); % set( Source_Content )Translate_Content = uicontrol('parent', fh, 'style', 'edit',...'units','normalized',...'position',[0.55, 0.1, 0.4, 0.6],...'HorizontalAlignment','left',...'BackgroundColor',[1,1,1],...'Max',2); % set( Translate_Content )Translate = uicontrol('parent', fh, 'style', 'pushbutton',...'units','normalized',...'position',[0.1, 0.74, 0.2, 0.07],...'string','Translate',...'callback','Translate_mean');uicontrol('parent',fh, 'style','text','units','normalized',...'position',[0.23, 0.84, 0.6, 0.1],...'string','Google translation API using',...'fontsize',18)

这个是button调用的小函数Translate_mean.m的内容：

function Translate_mean %{ Source = 'en'; Totrans = 'cn'; ANS_url = urlread(['http://translate.google.cn/translate_a/single?client=gtx&sl=',Source, '&tl=', Totrans, '&dt=t&q=googleq=how are you']); %} global Source_first Translate_two Source_Content Translate_Content global LangurageH1 = get(Source_first, 'value'); H2 = get(Translate_two, 'value'); Content_source = get(Source_Content,'string');Source = Langurage{H1}; Totrans = Langurage{H2}; Content = Content_source;Content(Content=='。') = '.';LEN = size(Content,1); TransContent = cell(LEN,1); for ihang = 1:LEN% string to UTF-8Str2 = dec2hex( unicode2native(Content(ihang,:), 'UTF-8') );Allstr = [];for i = 1:length(Str2)Allstr = [ Allstr,'%', Str2(i,:) ];endANS_url = urlread(['http://translate.google.cn/translate_a/single?client=gtx&sl=',...Source, '&tl=', Totrans, '&dt=t&q=googleq=', Allstr, '&ie=UTF-8']);Tl = regexp( ANS_url, '[[["[gG]oogle.*u003d (.*)","google', 'tokens' );TransContent{ihang} = Tl{1,1}{1,1}; endset(Translate_Content, 'string', TransContent)

 

以上就是如何实现最开始的效果图的哪个功能。我下面给一个小代码是用来普通测试，测试过了之后就可以再去调试上面两个小函数：（有一点注释讲究着看吧）

clear;clc Source = 'zh-CN'; % Source = 'en'; Totrans = 'en'; Str = '你是个沙雕额';% string to UTF-8 Str2 = dec2hex( unicode2native(Str, 'UTF-8') ); Allstr = []; for i = 1:length(Str2)Allstr = [ Allstr,'%', Str2(i,:), ]; end% Str = '%E6%B1%89';% sl = source language % tl = translate language % ie = input format % oe = output format ANS_urlr = urlread(['http://translate.google.cn/translate_a/single?client=gtx&sl=',...Source, '&tl=', Totrans, '&dt=t&q=googleq=',Allstr,'&ie=UTF-8']);Tl = regexp( ANS_urlr, '[[["[gG]oogle.*u003d (.*)","google', 'tokens' ); result = Tl{1,1}{1,1} % Tl{1,1}{1,1}% &oe=UTF-8 % &ie=UTF-8

 

MATLAB的爬虫比python的似乎要方便。

就是感觉很粗暴，直接一个网址。但是想了想简单的东西一般功能就少一点吧。

 

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