HTML/CSS : empty page + only header page when printing table-6ren

HTML/CSS : empty page + only header page when printing table

转载作者：搜寻专家更新时间：2023-10-31 22:42:23

我不明白为什么这个文档中有一个空白页+一个只有表头的页面。

enter image description here

其余的还可以，但我无法摆脱这 2 页。

这是完整的 HTML 代码:

<!DOCTYPE html>
<html lang="en" >
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <style media="print" type="text/css">

h1:not(:first-child) {
    page-break-before: always;
}

table {
    page-break-before : avoid;
    page-break-inside : avoid;
    padding: 0;border-collapse: collapse; }
table tr {
    border-top: 1px solid #cccccc;
    background-color: white;
    margin: 0;
    padding: 0; }
table tr:nth-child(2n) {
    background-color: #f8f8f8; }
table tr th {
    font-weight: bold;
    border: 1px solid #cccccc;
    margin: 0;
    padding: 6px 13px; }
table tr td {
    border: 1px solid #cccccc;
    margin: 0;
    padding: 6px 13px; }
table tr th :first-child, table tr td :first-child {
    margin-top: 0; }
table tr th :last-child, table tr td :last-child {
    margin-bottom: 0; }


tr {
    page-break-inside: avoid;
    page-break-after : avoid;
} 

th {
    page-break-inside: avoid;
    page-break-after : avoid;
} 

p { orphans: 5; widows: 5; page-break-after: avoid; page-break-before: avoid; }

body {
    height: auto;
   font-family: Helvetica, arial, sans-serif;
   font-size: 14px;
   line-height: 1.6;
   padding-top: 10px;
   padding-bottom: 10px;
   background-color: white;
   padding: 30px; 
}


body > *:first-child {
   margin-top: 0 !important; }
body > *:last-child {
   margin-bottom: 0 !important; }

a {
   color: #4183C4; }
a.absent {
   color: #cc0000; }
a.anchor {
   display: block;
   padding-left: 30px;
   margin-left: -30px;
   cursor: pointer;
   position: absolute;
   top: 0;
   left: 0;
   bottom: 0; }

h1, h2, h3, h4, h5, h6 {
   margin: 20px 0 10px;
   padding: 0;
   font-weight: bold;
   -webkit-font-smoothing: antialiased;
   cursor: text;
   position: relative; }

 body{counter-reset: section;}
   h2{counter-reset: sub-section;}
   h4{counter-reset: detail;}
   h3{counter-reset: composite;}
   h5{counter-reset: sub-detail;}

  h1{
     text-align:center;
     font-size:1.6em;
     margin-bottom: 10mm;
   }
   h2:before{
     counter-increment: section;
     content: counter(section) ". ";
   }
   h3:before{
     counter-increment: sub-section;
     content: counter(section) "." counter(sub-section) ". ";
   }
   h4:before{
     counter-increment: composite;
     content: counter(section) "." counter(sub-section) "." counter(composite) ". ";
   }
   h5:before{
     counter-increment: detail;
     content: counter(section) "." counter(sub-section) "." counter(composite) "." counter(detail) ". ";
   }
   h6:before{
     counter-increment: sub-detail;
     content: counter(section) "." counter(sub-section) "." counter(composite) "." counter(detail) "." counter(sub-detail) ". ";
   }


h1:hover a.anchor, h2:hover a.anchor, h3:hover a.anchor, h4:hover a.anchor, h5:hover a.anchor, h6:hover a.anchor {
   text-decoration: none; }

h1 tt, h1 code {
   font-size: inherit; }

h2 tt, h2 code {
   font-size: inherit; }

h3 tt, h3 code {
   font-size: inherit; }

h4 tt, h4 code {
   font-size: inherit; }

h5 tt, h5 code {
   font-size: inherit; }

h6 tt, h6 code {
   font-size: inherit; }

h1 {
   font-size: 28px;
   color: black; }

h2 {
   font-size: 24px;
   border-bottom: 1px solid #cccccc;
   color: black; }

h3 {
   font-size: 18px; }

h4 {
   font-size: 16px; }

h5 {
   font-size: 14px; }

h6 {
   color: #777777;
   font-size: 14px; }

/*
p, blockquote, ul, ol, dl, li, table, pre {
   margin: 15px 0; }
*/

hr {
   border: 0 none;
   color: #cccccc;
   height: 4px;
   padding: 0;
}

body > h2:first-child {
   margin-top: 0;
   padding-top: 0; }
body > h1:first-child {
   margin-top: 0;
   padding-top: 0; }
body > h1:first-child + h2 {
   margin-top: 0;
   padding-top: 0; }
body > h3:first-child, body > h4:first-child, body > h5:first-child, body > h6:first-child {
   margin-top: 0;
   padding-top: 0; }

a:first-child h1, a:first-child h2, a:first-child h3, a:first-child h4, a:first-child h5, a:first-child h6 {
   margin-top: 0;
   padding-top: 0; }

h1 p, h2 p, h3 p, h4 p, h5 p, h6 p {
   margin-top: 0; }

li p.first {
   display: inline-block; }
li {
   margin: 0; }
ul, ol {
   padding-left: 30px; }

ul :first-child, ol :first-child {
   margin-top: 0; }

dl {
   padding: 0; }
dl dt {
   font-size: 14px;
   font-weight: bold;
   font-style: italic;
   padding: 0;
   margin: 15px 0 5px; }
dl dt:first-child {
   padding: 0; }
dl dt > :first-child {
   margin-top: 0; }
dl dt > :last-child {
   margin-bottom: 0; }
dl dd {
   margin: 0 0 15px;
   padding: 0 15px; }
dl dd > :first-child {
   margin-top: 0; }
dl dd > :last-child {
   margin-bottom: 0; }

blockquote {
   border-left: 4px solid #dddddd;
   padding: 0 15px;
   color: #777777; }
blockquote > :first-child {
   margin-top: 0; }
blockquote > :last-child {
   margin-bottom: 0; }

</style>
</head>

<body>
<h1>Copy/Paste Link Use Case Overview</h1>

<p>In order to handle links correctly in any applications that can handle HTML clipboard content on paste, the following mime type data has to be provided when a <strong>Copy</strong> command is triggered:</p>

<p>In order to handle links correctly in any applications that can handle HTML clipboard content on paste, the following mime type data has to be provided when a <strong>Copy</strong> command is triggered:</p>

<h2>Supported Mime Types</h2>

<h3>Plain Text (text/plain)</h3>

<p>For any simple <strong>Copy</strong> command as triggered by <code>CTRL+C</code> this mime type will contain the text as seen by the user, e.g. the name of the object. In case of a special <strong>Copy Link</strong> Command this will contain the <strong>global</strong> test-url of the object.</p>

<pre><code>This is the object name
</code></pre>

<pre><code>test://test.de:1643/testprod/object/12/345
</code></pre>

<h3>HTML (text/html)</h3>

<p>This behaves very similar for all <strong>Copy</strong> commands. This mime type will contain a <em>html fragment</em> with an <code>&lt;a&gt;</code>-tag brearing the <em>global</em> test-url, the name of the object and the tooltip:</p>

<pre><code>&lt;a href="test:://test.de:1643/testprod/object/12/345" title="This is the tooltip"&gt;This is an object&lt;/a&gt;
</code></pre>

<h3>Uri-List (text/uri-list)</h3>

<p>A list of global test-urls prependend by the object name in a comment line:</p>

<pre><code># Name of object 1
test://test.de:1643/testprod/object/123/5678
# Object 2
test://...
</code></pre>

<p>
<h3>EIS-List (application/test-eis-list)</h3>
<p>
A list of EIS-String that correspond to <strong>local</strong> test-urls. Whenever data is pasted inside test, the eis-list mime type is preferred. The contained data is just a list of eis:</p>

<pre><code>/object/12/345
/object/1/26
...
</code></pre>
</p>

<p>
<h2>This is a title</h2>
This is the text
<br>that should not have a 
<br> break page
</p>

<table>
    <thead>
        <tr>
            <th>Context </th>
            <th> Command </th>
            <th> text/plain </th>
            <th> text/html </th>
            <th> text/uri-list </th>
            <th> eis-list </th>
            <th> Description</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>1. Tree View</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy</strong></td>
            <td>Object Name</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Text Editor Paste gives in object name</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Text Editor Paste gives test-URL</td>
        </tr>
        <tr>
            <td>c)  </td>
            <td><strong>Copy Create-Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td> Like (b) but link will open a new object (create)</td>
        </tr>
        <tr>
            <td>2. Navigation Sidebar</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy</strong></td>
            <td>Object Name</td>
            <td>Global HTML Link</td>
            <td>URL</td>
            <td>(Local) EIS if appropriate</td>
            <td>The navigation sidebar can contain any url so if an URL is store this will be used as is. For object eis the behavior is like 1. a)</td>
        </tr>
        <tr>
            <td>Object Detail View</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Plain link to open the object</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>The link to open the object also contains layout settings of the current view</td>
        </tr>
        <tr>
            <td>3. Report Quick View</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Plain link to open the report</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>The link to open the report also contains layout settings of the current view and report parameter values.</td>
        </tr>
        <tr>
            <td>4. Report Object</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.a)</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.b)</td>
        </tr>
        <tr>
            <td>5. Embedded Report Toolbar</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
            <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.a)</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.b)</td>
        </tr>
        <tr>
            <td>1. Tree View</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy</strong></td>
            <td>Object Name</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Text Editor Paste gives in object name</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Text Editor Paste gives test-URL</td>
        </tr>
        <tr>
            <td>c)  </td>
            <td><strong>Copy Create-Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td> Like (b) but link will open a new object (create)</td>
        </tr>
        <tr>
            <td>2. Navigation Sidebar</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy</strong></td>
            <td>Object Name</td>
            <td>Global HTML Link</td>
            <td>URL</td>
            <td>(Local) EIS if appropriate</td>
            <td>The navigation sidebar can contain any url so if an URL is store this will be used as is. For object eis the behavior is like 1. a)</td>
        </tr>
        <tr>
            <td>Object Detail View</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Plain link to open the object</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>The link to open the object also contains layout settings of the current view</td>
        </tr>
        <tr>
            <td>3. Report Quick View</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>Plain link to open the report</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>The link to open the report also contains layout settings of the current view and report parameter values.</td>
        </tr>
        <tr>
            <td>4. Report Object</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.a)</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.b)</td>
        </tr>
        <tr>
            <td>5. Embedded Report Toolbar</td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
            <tr>
            <td>a)  </td>
            <td><strong>Copy Link</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.a)</td>
        </tr>
        <tr>
            <td>b)  </td>
            <td><strong>Copy Link with Layout</strong></td>
            <td>Global test-URL</td>
            <td>Global HTML Link</td>
            <td>Global test-URL</td>
            <td>(Local) EIS</td>
            <td>see 3.b)</td>
        </tr>
    </tbody>
</table>

<h2>Other related issues</h2>

<h3>Inconsistent Fonts and Font Sizes are used when links are pasted into MS Word</h3>

<ul>
<li>If &lsquo;Copy&rsquo;, &lsquo;Copy Object Url&rsquo; or &lsquo;Copy Create-Object-Url&rsquo; in the context menu of the tree view is used and the link is pasted into MS Word by Ctrl+V, the font &lsquo;MS Shell Dlg 2&rsquo; with size 8,5 is used.</li>
<li>Links that are copied from the navigation bar are also pasted with font &lsquo;MS Shell Dlg 2&rsquo; with size 8,5 into MS Word</li>
<li>Expected: The link is pasted into MS Word with the font that is used as standard in the Word template.</li>
</ul>


<h3>Rename &lsquo;Copy Object Url&rsquo; and &lsquo;Copy Create-Object-URL&rsquo;</h3>

<p>Both commands in the context menu for objects in the structure tree should be renamed for consistency.</p>

<ul>
<li>&lsquo;Copy Object Url&rsquo; should be renamed to &lsquo;Copy Object Link&rsquo;</li>
<li>&lsquo;Copy Create-Object-Url&rsquo; should be renamed to &lsquo;Copy Create-Object-Link&rsquo;</li>
</ul>


<h2>Additional Notes</h2>

<p>The German translations must also be renamed.</p>
<h1>Copy/Paste Link Use Case Overview</h1>

<p>In order to handle links correctly in any applications that can handle HTML clipboard content on paste, the following mime type data has to be provided when a <strong>Copy</strong> command is triggered:</p>

<h2>Supported Mime Types</h2>

<h3>Plain Text (text/plain)</h3>

<p>For any simple <strong>Copy</strong> command as triggered by <code>CTRL+C</code> this mime type will contain the text as seen by the user, e.g. the name of the object. In case of a special <strong>Copy Link</strong> Command this will contain the <strong>global</strong> test-url of the object.</p>

<pre><code>This is the object name
</code></pre>

<p>or</p>

<pre><code>test://test.de:1643/testprod/object/12/345
</code></pre>

<h3>HTML (text/html)</h3>

<p>This behaves very similar for all <strong>Copy</strong> commands. This mime type will contain a <em>html fragment</em> with an <code>&lt;a&gt;</code>-tag brearing the <em>global</em> test-url, the name of the object and the tooltip:</p>

<pre><code>&lt;a href="test:://test.de:1643/testprod/object/12/345" title="This is the tooltip"&gt;This is an object&lt;/a&gt;
</code></pre>

<h3>Uri-List (text/uri-list)</h3>

<p>A list of global test-urls prependend by the object name in a comment line:</p>

<pre><code># Name of object 1
test://test.de:1643/testprod/object/123/5678
# Object 2
test://...
</code></pre>

<h3>EIS-List (application/test-eis-list)</h3>

<p>A list of EIS-String that correspond to <strong>local</strong> test-urls. Whenever data is pasted inside test, the eis-list mime type is preferred. The contained data is just a list of eis:</p>

<pre><code>/object/12/345
/object/1/26
...
</code></pre>

</body>
</html>

我使用 IE10，因为 Chrome 和 Firefox 实际上在 page-break-* 和 orphans/widows 方面存在一些问题

最佳答案

应用于表格的分页避免告诉格式化引擎不要在表格内分页。您应该注意，大多数格式化程序不会“倒退”并尝试再次做事，它们是“前进”的引擎。

因此，您在整个表格上设置了 page-break-avoid。该表大约有 2.5 个物理页面长。

首先，格式化程序会尝试使其适合当前页面。当然不能，因为它比一页长。所以它抛出那个空白页并重试。而且，当然不能，因为它不适合该页面。

因此它创建一个新的空白页，放置标题并开始放下行。但是您还有另一条规则 -- page-break-after="avoid" 在行上。所以它不能在行后分页，所以它开始将行放入内存中……噗。当然，它们放不下页面，因为行数超过了页面长度。

因此它放弃，然后将您的表格放在下一页并打破该条件。

您已经创建了一套非常过度约束的规则。

不清楚你真正想要什么，因为你不能说——我不希望表格在其中中断，我希望所有行都放在一起(这些都是你声明的规则)，然后给它一个2.5 页长的表格。

我还要注意到这有点可怕:

p { orphans: 5; widows: 5; page-break-after: avoid; page-break-before: avoid; }

这意味着在任何 p 标签中至少保持 10 行在一起，永远不要在它之前和之后分页。所以从字面上看，你是说如果你连续有 10 个 p 标签，没有一个超过 10 行(5 个孤儿和 5 个寡妇)，你将再次遇到相同的情况。无论是在它之前还是之后，它都无法在它内部破裂。

现在，您的评论如下:

But this is a must for us (my company). The table header must be visible in all the pages.

你的意思一定是在放置表格的所有页面上，而不是所有页面上。将表放在一起(page-break-inside="avoid"on table)或将表中的所有行放在一起(page-break-after="avoid"on row)的约束与那。表格标题将出现在表格所在的每一页上。只要它们在表头中。

删除所有这些限制——您会看到表格标题很好，没有空白页。所以删除:

page-break-inside="avoid" 在 table
page-break-after="avoid" 在 tr
(我永远不会在 p 上有那套规则)

enter image description here

关于HTML/CSS : empty page + only header page when printing table，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30756982/

文章推荐： php - bool 和字符串条件

文章推荐： PHP 正则表达式 - 一组的重复匹配

文章推荐： php - 在 PHP 中使用 saveXML 保存 CDATA

printing - 为什么 print(print()) 在 Lua 中不像 print(type(2)) 那样工作？
我已经和 Lua 搞了几天，我想出了一些让我三思而后行的事情。 Lua 5.3 的引用手册我还没有看，因为它似乎很复杂，我会尽快查看。好的，在 lua 5.3 中，我们知道 print() 返回 n
haskell - 为什么 `print <$> (print "你好“)` print "你好”？
计算时IO (IO ()) , 两个 (IO ())和 ()是计算出来的，所以为什么 main :: IO (IO ()) main = print (print "Hello, World!")
来自 print(print(print ('aaa' ))) 的 Python 输出
我不太理解从以下位置收到的输出: print(print(print('aaa'))) aaa None None 先aaa清楚了。但我认为第二个 print(aaa) 会抛出一个错误，因为变量 aa
perl - 为什么 "print/regex/? print a : print b"将 "1"放在每行之前？
当我运行下面的 Perl one-liner 时，它会打印 1在每一行的前面，我不想要它。它应该做的只是注释匹配 root 的行. $ cat /etc/passwd | perl -ne 'prin
Swift.print() 与 print()
我发现由于 Xcode 将不再消化 println() 我是留下 Swift.print() 或 print() 。我的问题是，两者有什么区别？我没能在网上或在 swift 前卫郎。 (Swif
printing - 谷歌浏览器扩展 : Print the page silently
我正在开发一个内部 Google Chrome 扩展，它需要一种方法来启动将当前页面打印到打印机。我不希望出现默认的打印对话框(因此，javascript:window.print() 是不可能的)。
printing - Perl6 Terminal::Print 如何提示用户输入文本？
我正在将 Perl6 Terminal::Print 模块用于基于控制台的应用程序。它运行良好 - 但是，现在我需要提示用户输入一串文本。有什么好的方法可以做到这一点？最佳答案这是使用 Ter
lua - 为什么Lua中是 `local print = print`？
在学习第三方的Lua代码时，我发现在主脚本文件的顶部 local insert = table.insert local match = string.match local gsub = strin
lua - 为什么Lua中是 `local print = print`？
在学习第三方的Lua代码时，我发现在主脚本文件的顶部 local insert = table.insert local match = string.match local gsub = strin
Python -> 告诉一个带有 print 语句的程序到 "not print"
我目前正在学习 Python，并开始了一个项目，为 2000-2005 年 MLB 摊牌纸牌游戏创建棒球模拟游戏。这些程序包含棒球比赛的事件，作为单独代码段中间的打印语句(“Jeff 击中单打”，“B
pretty-print - 使用尽可能少的括号的 pretty-print 表达式？
我的问题:在没有多余括号的情况下漂亮地打印表达式的最干净的方法是什么？我有以下 lambda 表达式的表示: Term ::= Fun(String x, Term t) | App(
printing - 为 Julia 中的新类型定义类似 print() 的函数
为了在 Julia 中创建可打印的新类型，应该定义哪些方法？我认为应该只定义 show，然后它将引发其他函数的行为，例如: 打印字符串 repl_show 显示紧凑展示需要为新类型定义以下哪些方
printing - Javascript - 如何判断 window.print() 是否成功？
我有一个页面，用户可以在其中打印一些带有图像和数据的 pdf。我希望他们能够打印他们想要的文件数量，并且能够暂停它们——这意味着他们可以停止打印并防止打印尚未发送到打印机的文件；当然，已经发送到打印机
printing - 为什么 print-circle 默认为 nil？
CLHS 说 An attempt to print a circular structure with *print-circle* set to nil may lead to looping
python - pycharm 自动完成 "print()"而不是 "print"
正如标题所示，在 Pycharm 中使用自动完成功能时，显示的唯一自动完成选项是:print(args,kwargs) 内置我希望自动完成功能以“print”完成，因为这是我通常使用的。我正在使用
go - 如何 fmt.Print ("print this on the center")
是否有可能使用 fmt.Println("...") 打印一个 shell 居中对齐的字符串？最佳答案作为对这个长期回答问题的更新，可以通过使用 fmt 包中的 * 符号来改进@miltonb 发
printing - 如何格式化 PRINT 或 WRITE 语句以覆盖控制台屏幕上的当前行？
我想在控制台屏幕上显示使用 DO 循环完成的计算进度。我可以像这样将进度变量打印到终端: PROGRAM TextOverWrite_WithLoop IMPLICIT NONE INTEGER ::
r - 直接调用对象时获取传递给 `print`的对象名称(不表达 `print`函数)
我正在尝试为我的新对象定义打印方法，并使用传递给 print 的对象名称。使用 deparse(substitute(y)) .这可以完美地使用 print功能明确: obj function (x
printing - Drupal 7 : Print pdf using dompdf
我需要安装 dompdf 方面的帮助。我应该将解压的 zip 文件放在目录中的哪个位置？我按照 INSTALL.txt 进行操作，它显示“将下载的包的内容提取到支持的路径之一”。这是否意味着放入“Mo
c++ - QtWebkit : Printing issue: no images on printed page
我的应用程序中有一个 webkit 小部件，您可以打印它。打印效果很好，除了打印时没有图像，即使屏幕上有图像。打印代码如下: void MainWindow::printPage() { Q

搜寻专家

个人简介

我是一名优秀的程序员,十分优秀！

作者热门文章

滴滴打车优惠券免费领取

全站热门文章

首页

博学

6Ren·AI

商城

HTML/CSS : empty page + only header page when printing table