Question

我有一个PHP文件，我为测试index1.php调用它在文件中，我现在有了这个代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html
    xmlns="http://www.w3.org/1999/xhtml"
    lang="en"
    xml:lang="en"
><head>

<meta
    http-equiv="Content-Type"
    content="text/html; charset=utf-8"
/>

<meta
    http-equiv="Content-Language"
    content="en"
/>

<meta
    name="viewport"
    content="width=device-width; height=device-height; initial-scale=1.0"
/>

<link
    type="text/css"
    rel="stylesheet"
    href="screen.css"
    media="screen,projection,tv"
/>

<title>
    change picture
</title>

</head><body>

<div id="slideCounter"></div>
<div id="slideShow">
<?php

$allowed_types = ['png','jpg','jpeg','gif'];
$imageDir = 'files/radar-simulation-files';
/*
    Assumes this .php is being run from the http root on the same
    domain as the desired image files.
*/

$handle = opendir($imageDir);
while (($imgPath = readdir($handle)) !== false) if (
    in_array(
        strtolower(pathinfo($imgPath, PATHINFO_EXTENSION)),
        $allowed_types
    )) echo '
    <img src="', $imageDir, '/', $imagePath, '" alt="slide" />';
closedir($handle);

?>
<!-- #slideShow --></div>

<script type="text/javascript" src="slideShow.js"></script>

</body></html>

现在我必须使用此代码也使用JavaScript代码，我不知道在哪里添加此代码？

(function(d) {

    // user defines

    var
        swapHours = 0,
        swapMinutes = 0,
        swapSeconds = 5,
        swapTotal = (swapHours * 60 + swapMinutes) * 60 + swapSeconds,
        loopSlideShow = true;

    // some handy helper functions

    function classExists(e, className) {
        return RegExp('(\\s|^)' + className + '(\\s|$)').test(e.className);
    }

    function classAdd(e, className) {
        if (classExists(e, className) return false;
        e.className += (e.className ? ' ' : '') + className;
        return true;
    }

    function classRemove(e, className) {
        if (!classExists(e, className)) return false;
        e.className = e.className.replace(
            new RegExp('(\\s|^)' + n + '(\\s|$)'), ' '
        ) . replace(/^\s+|\s+$/g,'');
        return true;
    }

    function textReplace(e, newtext) {
        if (d.innerText) e.innerText = newText;
            else e.textContent = newText;
    }

    function nodeFirst(e) {
        e = e.firstChild;
        while (e && e.nodeType != 1) e = e.nextSibling;
        return e;
    }

    function nodeLast(e) {
        e = e.lastChild;
        while (e && e.nodeType != 1) e = e.prevSibling;
        return e;
    }

    function nodeNext(e) {
        while (e) if ((e = e.nextSibling).nodeType == 1) return e;
        return null;
    }

    function nodePrev(e) {
        while (e) if ((e = e.prevSibling).nodeType == 1) return e;
        return null;
    }

    // slideShow setup

    var
        slideShow = d.getElementById('slideShow'),
        slideCounter = d.getElementById('slideCounter'),
        firstSlide = nodeFirst(slideShow),
        lastSlide = nodeLast(slideShow),
        currentSlide = firstSlide,
        swapCounter;

    classAdd(slideShow, 'ss_scripted');
    classAdd(currentSlide, 'ss_show');

    // slideShow functions

    function showCounter() {
        textReplace(slideCounter, 
            Math.floor(swapCounter / 3600) + ':' +
            (Math.floor(swapCounter / 60) % 60) + ':' +
            swapCounter % 60
        );
    }

    function resetCounter() {
        swapCounter = swapTotal;
        showCounter();
    }

    function makeSlide(newSlide) {
        classRemove(currentSlide, 'ss_show);
        currentSlide = newSlide;
        classAdd(currentSlide, 'ss_show');
    }

    function nextSlide() { 
        resetCounter();
        var newSlide = nodeNext(currentSlide);
        if (newSlide) makeSlide(newSlide);
            else if (loopSlideShow) makeSlide(firstSlide);
    }

    function prevSlide() {
        resetCounter();
        var newSlide = nodePrev(currentSlide);
        if (newSlide) makeSlide(newSlide);
            else if (loopSlideShow) makeSlide(lastSlide);
    }

    function slideUpdate() {
        if (swapCounter--) showCounter(); else nextSlide();
    }

    function startSlideShow() {
        resetCounter();
        setInterval(slideUpdate, 1000);
    }

    // wait for onload to actually start the countdown 

    if (window.eventListener) w.addEventListener('load', startSlideShow, false);
        else w.addEventListener('onload', startSlideShow);

})(document);

我尝试在此行之间添加此代码：

<script type="text/javascript" src="slideShow.js"></script>

脚本标记之间。

在脚本标记之间添加此代码是否正确？
我在这段代码上遇到3个错误：

在行上：if（classExists（e，className）返回false;预期）但是找到了返回

在线：classRemove（currentSlide，'ss_show）;缺少近距离报价

在线：currentSlide = newSlide;预期但未找到

最后我在哪里添加CSS代码？

Answer 1

如果您的第一个错误为if (classExists(e, className) return false;，则应为if (classExists(e, className))。你错过了一个右括号。

关于您的第二个错误，您错过了关闭引用，因为错误状态。它应该是classRemove(currentSlide, 'ss_show');。

对于上一个错误，代码在语句末尾需要逗号而不是分号。

将代码放在script标记之间，然后删除src标记。您也可以拥有多个script代码。

我在哪里以及如何在PHP文件中添加JavaScript代码和CSS代码？

1 个答案: