Question

我是JS的新手，并从JON DUCKETT的JAVASCRIPT和JQUERY书中学习。

我对有关 document.title 使用情况

的问题感到震惊

我编写了有关如何使用文档对象的代码。

除标题

之外，所有属性和方法都可以使用

我附上了代码，请看一下并帮助我获取 title 财产。

代码如下：

<!DOCTYPE html>
<html>
<head>
  <title>Hammer</title>
</head>
<body>
  <h1>THANOS</h1>
  <div id="tony"></div>
</body>
<script>
    var lord = "<p> The title of the page is :" + document.title + "</p>";             
     
     lord += "<p>address of the page is : " + document.URL + "</p>";

     lord += " <p>Last modified is : " + document.lastModified + "</p>";

     var man = document.getElementById("tony");
     man.innerHTML = lord;
</script>
</html>

输出：塔诺斯

 The title of the page is : 

 address of the page is : https://fiddle.jshell.net/_display/

 Last modified is : 07/14/2018 10:28:57

标题不显示原因？

代码中+ =的含义是什么，请帮忙

对不起，我没有10的声誉才能发布必须编写此代码的图像。

Answer 1

您的代码已打开，只是jsfiddle将标题设置为空。见jsbin http://jsbin.com/yorivec/edit?html,output

<!DOCTYPE html>
<html>
<head>
  <title>Hammer</title>
</head>
<body>
  <h1>THANOS</h1>
  <div id="tony"></div>
</body>
<script>
  var lord = "<p> The title of the page is :" + document.title + "</p>";             
  lord += "<p>address of the page is : " + document.URL + "</p>";
  lord += " <p>Last modified is : " + document.lastModified + "</p>";
  var man = document.getElementById("tony");
  man.innerHTML = lord;
</script>
</html>

Answer 2

您的代码实际上正在工作。点击下面的运行代码按钮以实时查看它：

var lord = "<p> The title of the page is :" + document.title + "</p>";             

 lord += "<p>address of the page is : " + document.URL + "</p>";

 lord += " <p>Last modified is : " + document.lastModified + "</p>";

 var man = document.getElementById("tony");

 man.innerHTML = lord;

<!DOCTYPE html>
<html>
<head>
<title>Hammer</title>
</head>
 <body>
 <h1>THANOS</h1>
 <div id="tony"></div>
</body>
</html>

而且，当我们用任何编程语言（而不仅仅是JavaScript）编写类似a += b的内容时，编写a = a + b只是一种简写。没有更多，没有更多。：）

Answer 3

plz检查所有代码给定好人

<!DOCTYPE html>
<html>
<head>
<title>Hammer</title>
 <script>

 function myFunction() {
    var d = new Date();
    document.getElementById("time").innerHTML="last update:"+d;
    document.getElementById("url").innerHTML="url:"+window.location.href+".....current page....."+window.location.pathname+".........websitename......"+window.location.hostname;
    
      document.getElementById("title").innerHTML="Title:"+document.title;
   
 
 }
 
 </script>
 <style>
 body {
    font-family: Calibri, sans-serif;
    font-size:15px;
    line-height:1.5;
    padding:0;
    margin:0;
    background-color: #f4f4f4;
}

 </style>

</head>
<body>

<h1 id="title">This is a Headhing</h1>
<p id="url">This is a paragraph.</p>
<p id="time">This is a paragraph.</p>


<button onclick="myFunction()">Try it</button>

</body>
</html>

Javascript中的document.title问题

3 个答案: