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<h1 id="land-of-lisp-note"><a href="#land-of-lisp-note" class="headerlink" title="land of lisp note"></a>land of lisp note</h1><blockquote>
<p>by lkl</p>
</blockquote>
<h2 id="section-1"><a href="#section-1" class="headerlink" title="section 1"></a>section 1</h2><h3 id="chapter-1-2"><a href="#chapter-1-2" class="headerlink" title="chapter 1-2"></a>chapter 1-2</h3><p>定义全局变量：<br>(defparameter <em>small</em> 1)<br>(defvar <em>small</em> 2)</p>
<p>定义局部变量：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">(let (variable declarations)</span><br><span class="line"> ...body...)</span><br><span class="line">> (let ((a 5)</span><br><span class="line"> (b 6))</span><br><span class="line"> (+ a b))</span><br><span class="line">11</span><br></pre></td></tr></table></figure>
<p>ash(arithmetic shift functionv),算数位移方法，<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">> (ash 11 1)</span><br><span class="line">22</span><br><span class="line"></span><br><span class="line">> (ash 11 -1)</span><br><span class="line">5</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">> (let ((a 5)</span><br><span class="line"> (b 6))</span><br><span class="line"> (+ a b))</span><br><span class="line">11</span><br></pre></td></tr></table></figure>
<h3 id="chapter-3"><a href="#chapter-3" class="headerlink" title="chapter 3"></a>chapter 3</h3><p>定义全局函数</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (defun function_name (arguments) </span><br><span class="line"> ...)</span><br></pre></td></tr></table></figure>
<p>定义局部函数</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">(flet ((function_name (arguments) </span><br><span class="line"> ...function body...))</span><br><span class="line"> ...body...)</span><br><span class="line"> </span><br><span class="line">> (flet ((f (n)</span><br><span class="line"> (+ n 10)))</span><br><span class="line"> (f 5))</span><br><span class="line">15</span><br></pre></td></tr></table></figure>
<p>比较两个符号是否相同：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (eq 'fooo 'FoOo)</span><br><span class="line">T</span><br></pre></td></tr></table></figure>
<p>求幂：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (expt 53 53)</span><br><span class="line">24356848165022712132477606520104725518533453128685640844505130879576720609150223301256150373</span><br></pre></td></tr></table></figure>
<p>显示字符串：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">> (princ "Tutti Frutti")</span><br><span class="line">Tutti Frutti</span><br><span class="line">"Tutti Frutti"</span><br></pre></td></tr></table></figure>
<p>链接任何两个数据（无论类型）:</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">> (cons 'chicken 'cat)</span><br><span class="line">(CHICKEN . CAT)</span><br><span class="line">> (cons 'pork (cons 'beef (cons 'chicken ())))</span><br><span class="line">(PORK BEEF CHICKEN)</span><br><span class="line">> (cons 'pork '(beef chicken))</span><br><span class="line">(PORK BEEF CHICKEN)</span><br></pre></td></tr></table></figure>
<p>从第一个cell中取出元素：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (car '(pork beef chicken))</span><br><span class="line">PORK</span><br></pre></td></tr></table></figure>
<p>从第二个cell或剩下所有cell中取出元素：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (cdr '(pork beef chicken))</span><br><span class="line">(BEEF CHICKEN)</span><br></pre></td></tr></table></figure>
<p>可以将car和cdr串联到cadr，cdar或cadadr等新功能中。 可以简洁地从复杂列表中提取特定数据。 输入cadr与使用car和cdr一样，它从列表中返回第二项。 （第二个cons单元格的第一个cell将包含该项目。）看一下这个例子:</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">> (cdr '(pork beef chicken))</span><br><span class="line">(BEEF CHICKEN)</span><br><span class="line">> (car '(beef chicken))</span><br><span class="line">BEEF</span><br><span class="line">> (car (cdr '(pork beef chicken)))</span><br><span class="line">BEEF</span><br><span class="line">> (cadr '(pork beef chicken))</span><br><span class="line">BEEF</span><br></pre></td></tr></table></figure>
<p><em>在这里注意：</em></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (cddddr '(pork beef chicken fish apple orange ))</span><br><span class="line">(APPLE ORANGE)</span><br></pre></td></tr></table></figure>
<p>c*r最多可达四级。</p>
<p>这里成功取出了最后两个元素，但是当按照同样的方法取最后一个元素时：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line">> (cdddddr '(pork beef chicken fish apple orange ))</span><br><span class="line"></span><br><span class="line">*** - EVAL: undefined function CDDDDDR</span><br><span class="line">The following restarts are available:</span><br><span class="line">USE-VALUE :R1 Input a value to be used instead of (FDEFINITION 'CDDDDDR).</span><br><span class="line">RETRY :R2 Retry</span><br><span class="line">STORE-VALUE :R3 Input a new value for (FDEFINITION 'CDDDDDR).</span><br><span class="line">ABORT :R4 Abort debug loop</span><br><span class="line">ABORT :R5 Abort debug loop</span><br><span class="line">ABORT :R6 Abort debug loop</span><br><span class="line">ABORT :R7 Abort debug loop</span><br><span class="line">ABORT :R8 Abort debug loop</span><br><span class="line">ABORT :R9 Abort debug loop</span><br><span class="line">ABORT :R10 Abort debug loop</span><br><span class="line">ABORT :R11 Abort debug loop</span><br><span class="line">ABORT :R12 Abort debug loop</span><br><span class="line">ABORT :R13 Abort debug loop</span><br><span class="line">ABORT :R14 Abort debug loop</span><br><span class="line">ABORT :R15 Abort debug loop</span><br><span class="line">ABORT :R16 Abort debug loop</span><br><span class="line">ABORT :R17 Abort main loop</span><br></pre></td></tr></table></figure>
<p>构建列表：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">> (list 'pork 'beef 'chicken)</span><br><span class="line">(PORK BEEF CHICKEN)</span><br></pre></td></tr></table></figure>
<p>以下三种创建列表的方式没有区别：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">> (cons 'pork (cons 'beef (cons 'chicken ())))</span><br><span class="line">(PORK BEEF CHICKEN)</span><br><span class="line">> (list 'pork 'beef 'chicken)</span><br><span class="line">(PORK BEEF CHICKEN)</span><br><span class="line">> '(pork beef chicken)</span><br><span class="line">(PORK BEEF CHICKEN)</span><br></pre></td></tr></table></figure>
<h2 id="section-2"><a href="#section-2" class="headerlink" title="section 2"></a>section 2</h2><h3 id="chapter-4"><a href="#chapter-4" class="headerlink" title="chapter 4"></a>chapter 4</h3>
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<h2 id="java-net-Socket"><a href="#java-net-Socket" class="headerlink" title="java.net Socket:"></a>java.net Socket:</h2>
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<h3 id="javascript创建对象"><a href="#javascript创建对象" class="headerlink" title="javascript创建对象"></a>javascript创建对象</h3><h4 id="1-工厂模式"><a href="#1-工厂模式" class="headerlink" title="1. 工厂模式"></a>1. 工厂模式</h4><p>函数内创建Object,并通过函数传入参数构建各属性,最后返回该Object.<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">function createPerson(name, age, job){</span><br><span class="line"> var o = new Object();</span><br><span class="line"> o.name = name;</span><br><span class="line"> o.age = age;</span><br><span class="line"> o.job = job;</span><br><span class="line"> o.sayName = function(){</span><br><span class="line"> alert(this.name);</span><br><span class="line"> };</span><br><span class="line"> return o;</span><br><span class="line">}</span><br><span class="line">var person1 = createPerson("Nicholas", 29, "Software Engineer");</span><br><span class="line">var person2 = createPerson("Greg", 27, "Doctor");</span><br></pre></td></tr></table></figure></p>
<h4 id="2-构造函数模式"><a href="#2-构造函数模式" class="headerlink" title="2. 构造函数模式"></a>2. 构造函数模式</h4><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">function createPerson2(name,age,job)</span><br><span class="line">{</span><br><span class="line"> this.name = name;</span><br><span class="line"> this.age = age;</span><br><span class="line"> this.sayName = function(){</span><br><span class="line"> alert(this.name);</span><br><span class="line"> }</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">var p1 = new createPerson2("lilin",22);</span><br><span class="line">alert(p1.name);</span><br><span class="line">p1.sayName();</span><br></pre></td></tr></table></figure>
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<p>js中包括两种属性：数据属性和访问器属性</p>
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<h1 id="java-awt-布局管理器"><a href="#java-awt-布局管理器" class="headerlink" title="java awt 布局管理器"></a>java awt 布局管理器</h1><h2 id="FlowLayout布局管理器"><a href="#FlowLayout布局管理器" class="headerlink" title="FlowLayout布局管理器"></a>FlowLayout布局管理器</h2><p>在FlowLayout布局管理器中组件像水流一样向某方向流动，遇到边界就会折回，重头开始排列。默认从左往右排列。Panel和Applet默认使用FlowLayout布局管理器。</p>
<p>FlowLayout有三个构造器：</p>
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<li><p>FlowLayout(): 使用默认对齐方式、默认垂直、水平间距创建FlowLayout布局管理器。</p>
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<li><p>FlowLayout(int align): 使用指定对齐方式、默认垂直、水平间距创建FlowLayout布局管理器。</p>
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<li><p>FlowLayout(int align,int hgap,int vgap): 使用指定对齐方式、指定垂直、水平间距创建FlowLayout布局管理器。</p>
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