blocks|key|700908|text|您可以使用像setInterval()这样的工具，并结合设置document.title。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|700909|要动态更改标题，请创建一个字符串消息数组(请参阅Arrays)。在为setInterval()编写的函数中，每次运行时都要获取一个random+integer。您可以使用它来索引已创建的字符串数组。将该值设置为document.title。|700910|或者，这里有一些快速演示代码来帮助您：|700911|<html>
++++<script+type="text/javascript">
++++++++messages+=+[+"one",+"two",+"three"+]

++++++++function+rotateTitle()+{
++++++++++++index+=+0

++++++++++++setInterval(function()+{
++++++++++++++++if+(messages.length+==+index)+{
++++++++++++++++++++index+=+0
++++++++++++++++}

++++++++++++++++document.title+=+messages[index]

++++++++++++++++index%2B%2B
++++++++++++},+5000)
++++++++}
++++</script>
<body+onLoad="rotateTitle()">
</body>
</html>|code-block|syntax|javascript|700912|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3schools.com/jsref/met_win_setinterval.asp|1|https://stackoverflow.com/a/413455/695787|2|http://www.w3schools.com/js/js_arrays.asp|3|http://www.w3schools.com/jsref/jsref_random.asp^0|6|D|0|U|E|1|0|O|6|2|1T|E|3|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]|$A|14|B|15|1|16]]|C|$]]|$1|D|3|E|5|6|7|17|8|@]|9|@$A|18|B|19|1|1A]|$A|1B|B|1C|1|1D]]|C|$]]|$1|F|3|G|5|6|7|1E|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1F|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|1G|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]|W|$5|P|Q|R|C|$S|X]]|Y|$5|P|Q|R|C|$S|Z]]]]

<p>You can use something like <a href="http://www.w3schools.com/jsref/met_win_setinterval.asp" rel="nofollow noreferrer">setInterval()</a>, combined with setting the <a href="https://stackoverflow.com/a/413455/695787">document.title</a>. </p>

<p>To change the title dynamically, create an array of string messages (see <a href="http://www.w3schools.com/js/js_arrays.asp" rel="nofollow noreferrer">Arrays</a>). Inside the function you'll write for setInterval(), get a <a href="http://www.w3schools.com/jsref/jsref_random.asp" rel="nofollow noreferrer">random integer</a> everytime it runs. You can use that to index into the array of strings you've made. Set that value to document.title.</p>

<p>Or, here's some quick demo code to get you going:</p>

<pre><code>&lt;html&gt;
    &lt;script type="text/javascript"&gt;
        messages = [ "one", "two", "three" ]

        function rotateTitle() {
            index = 0

            setInterval(function() {
                if (messages.length == index) {
                    index = 0
                }

                document.title = messages[index]

                index++
            }, 5000)
        }
    &lt;/script&gt;
&lt;body onLoad="rotateTitle()"&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>


blocks|key|951900|text|var+i=0;
setInterval(function(){
++++var+titles=['Hi+everyone',+'Salut+tout+le+monde',+'Cao+svima'];//add+more+titles+if+you+want
++++if(i===titles.length)+{
++++++++i=0;
++++}
++++document.title+=+titles[i];
++++i%2B%2B;
},+5000);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|951901|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var i=0;
setInterval(function(){
    var titles=['Hi everyone', 'Salut tout le monde', 'Cao svima'];//add more titles if you want
    if(i===titles.length) {
        i=0;
    }
    document.title = titles[i];
    i++;
}, 5000);
</code></pre>


blocks|key|700979|text|这段代码中最复杂的部分是使用模运算来根据titles数组的长度获得当前迭代。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|700980|(ii%2B%2B+%25+titles.length)|code-block|syntax|javascript|700981|我们增加迭代器的ii%2B%2B，然后使用模数(除法余数)来计算迭代器的当前值。这将允许您根据需要使用任意多的标题。|700982|​|700983|const+titles+=+[
++'Hi+I+am+a+title',
++'Hi+I+am+another+title',
++'I+am+also+a+title'
]

function+changeTitles(titles){
++//+save+an+iterator+in+a+closure
++let+ii+=+0
++//+update+is+run+at+the+start
++return+(function+update()+{
++++//+change+the+title
++++document.querySelector('title').textContent+=+titles[(ii%2B%2B+%25+titles.length)]
++++//+queue+the+function+to+be+called+in+5+seconds
++++setTimeout(update,+5000)
++})()
}

changeTitles(titles)|700984|700985|entityMap^0|K|6|0|0|8|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|W|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|10|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|Q|3|N|5|6|7|12|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|S|$]]

<p>The most complicated part of this code is using modulo to get the current iteration based on the length of the <code>titles</code> array.</p>

<pre><code>(ii++ % titles.length)
</code></pre>

<p>We are increasing the iterator <code>ii++</code> then using modulo (division remainder) to figure out the current value of the iterator. This will allow you to use as many titles as you need.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="true">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>const titles = [
  'Hi I am a title',
  'Hi I am another title',
  'I am also a title'
]

function changeTitles(titles){
  // save an iterator in a closure
  let ii = 0
  // update is run at the start
  return (function update() {
    // change the title
    document.querySelector('title').textContent = titles[(ii++ % titles.length)]
    // queue the function to be called in 5 seconds
    setTimeout(update, 5000)
  })()
}

changeTitles(titles)</code></pre>
</div>
</div>
</p>


blocks|key|4484376|text|像这样的东西会为你工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4484377|The+Demo+on+Jsfiddle|offset|length|4484378|HTML+(为外观重新加载div+:P)|4484379|<div+id="page_title"></div>
<br>
<span+id="text-reload">Reload</span>|code-block|syntax|javascript|4484380|JS|4484381|//+custom+jquery+plugin+loadText()
++++$.fn.loadText+=+function(+textArray,+interval+)+{
++++++++return+this.each(+function()+{
++++++++++++var+obj+=+$(this);
++++++++++++obj.fadeOut(+'slow',+function()+{
++++++++++++++++var+elem+=+textArray[0];
++++++++++++++++obj.empty().html(+elem+);
++++++++++++++++textArray.shift();
++++++++++++++++textArray.push(elem);
++++++++++++++++obj.fadeIn(+'fast'+);
++++++++++++});
++++++++++++timeOut+=+setTimeout(+function(){+obj.loadText(+textArray,+interval+)},+interval+);
++++++++++++$("#text-reload").click(+function(){+
++++++++++++++++if(+!obj.is(':animated')+)+{+clearTimeout(+timeOut+);+obj.loadText(+textArray,+interval+);}+//+animation+check+prevents+"too+much+recursion"+error+in+jQuery+
++++++++++++});
++++++++});
++++};

++++$(document).ready(function()+{
++++++++var+helloArray+=+["Hi+I+am+a+title",+"Hi+I+am+another+title",+"I+am+also+a+title",+"more",+"and+more",+"and+even+more",+"aloha",+"see+ya!"];
++++++++$('#page_title').loadText(+helloArray,+5000+);+//+(+array,+interval+)
++++++++document.title+=+$('#page_title').text();
++++});|4484382|entityMap|0|LINK|mutability|MUTABLE|url|http://jsfiddle.net/norcaljohnny/32tt1p6q/1/^0|0|0|K|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@$D|10|E|11|1|12]]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

<p>Something like this will work for you.</p>

<p><a href="http://jsfiddle.net/norcaljohnny/32tt1p6q/1/" rel="nofollow">The Demo on Jsfiddle</a></p>

<p>The HTML (reload div for looks :P)</p>

<pre><code>&lt;div id="page_title"&gt;&lt;/div&gt;
&lt;br&gt;
&lt;span id="text-reload"&gt;Reload&lt;/span&gt;
</code></pre>

<p>The JS</p>

<pre><code>// custom jquery plugin loadText()
    $.fn.loadText = function( textArray, interval ) {
        return this.each( function() {
            var obj = $(this);
            obj.fadeOut( 'slow', function() {
                var elem = textArray[0];
                obj.empty().html( elem );
                textArray.shift();
                textArray.push(elem);
                obj.fadeIn( 'fast' );
            });
            timeOut = setTimeout( function(){ obj.loadText( textArray, interval )}, interval );
            $("#text-reload").click( function(){ 
                if( !obj.is(':animated') ) { clearTimeout( timeOut ); obj.loadText( textArray, interval );} // animation check prevents "too much recursion" error in jQuery 
            });
        });
    };

    $(document).ready(function() {
        var helloArray = ["Hi I am a title", "Hi I am another title", "I am also a title", "more", "and more", "and even more", "aloha", "see ya!"];
        $('#page_title').loadText( helloArray, 5000 ); // ( array, interval )
        document.title = $('#page_title').text();
    });
</code></pre>


blocks|key|951968|text|尝尝这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|951969|<script>
++++++++var+titleArray+=+["TITLE-1","TITLE-2","TITLE-3","TITLE-4"];
++++++++var+N+=+titleArray.length;
++++++++var+i+=+0;
++++++++setInterval(func,5000);
++++++++function+func(){
++++++++++++if+(i+==+4)+{
++++++++++++++++i+=+0;
++++++++++++}
++++++++++++document.title+=+titleArray[i];
++++++++++++i%2B%2B;
++++++++}

</script>|code-block|syntax|javascript|951970|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>try this</p>

<pre><code>&lt;script&gt;
        var titleArray = ["TITLE-1","TITLE-2","TITLE-3","TITLE-4"];
        var N = titleArray.length;
        var i = 0;
        setInterval(func,5000);
        function func(){
            if (i == 4) {
                i = 0;
            }
            document.title = titleArray[i];
            i++;
        }

&lt;/script&gt;
</code></pre>


blocks|key|701043|text|<!DOCTYPE+html>
<html>
<head>
++++<title>hello</title>
++++<script+src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
</head>
<body>

<script>
$(document).ready(function(){
++++var+titles+=+['title1',+'title+2',+'title+3'];

++++var+timeInterval+=+5000;+/**+interval+between+each+titles+**/

++++exec();

++++setInterval(function(){
++++++++exec();
++++},+timeInterval+*+titles.length);

++++function+exec(){
++++++++$.each(titles,+function(k,+v){
++++++++++++setTimeout(function(){
++++++++++++++++$('title').html(v);
++++++++++++},+timeInterval+*+(k+%2B+1));
++++++++});
++++}

});
</script>
</body>
</html>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|701044|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;hello&lt;/title&gt;
    &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;script&gt;
$(document).ready(function(){
    var titles = ['title1', 'title 2', 'title 3'];

    var timeInterval = 5000; /** interval between each titles **/

    exec();

    setInterval(function(){
        exec();
    }, timeInterval * titles.length);

    function exec(){
        $.each(titles, function(k, v){
            setTimeout(function(){
                $('title').html(v);
            }, timeInterval * (k + 1));
        });
    }

});
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>


<p>suppose I have a webpage with a title "Hi I am a title" but 5 seconds after the page has been loaded it becomes "Hi I am another title" and then 5 seconds after that it becomes "I am also a title" and then this keeps happening again and again.Can someone please guide me how to make this happen. I took some online tutorials from w3schools.com. I really want to do this but I don't even know where to start.</p>


can yo make the webpage title change again and again

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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假设我有一个标题为"Hi I am a title“的网页，但在页面加载5秒后，它变成了"Hi I I am another title”，然后5秒后变成了"I am a title“，然后这种情况不断发生，请again.Can某人指导我如何实现这一点。我从w3schools.com上获取了一些在线教程。我真的很想这样...

问你能让网页标题一次又一次地改变吗？
EN

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问你能让网页标题一次又一次地改变吗？EN