javascript - 如何在星期几之间进行照片更改？ | 如何在星期几之间进行照片更改

到目前为止，我有很多代码，但是我无法使load（）函数正常工作：

<!DOCTYPE html>
<html lang="en">
<head>
<!-- Page resizer -->
<meta name="viewport" content="width=device-width, initial-scale=1">

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">

<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>

<!-- Date -->
<script>
var d = new Date();
var days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
document.getElementById("date").innerHTML = days[d.getDay()];
</script>

<!-- Gif changer -->
<script>
function changegif() {
  var gif;
  if (days = Sunday) {
    gif = "/img/sunday.gif";
  } else if (days = Monday) {
    gif = "/img/monday.gif";
  } else if (days = Tuesday) {
    gif = "/img/tuesday.gif";
  } else if (days = Wednesday) {
    gif = "/img/wednesday.gif";
  } else if (days = Thursday) {
    gif = "/img/thursday.gif";
  } else if (days = Friday) {
    gif = "/img/friday.gif";
  } else if (days = Saturday) {
    gif = "/img/saturday.gif";
  }
}

function load() {
  document.getElementById('gif').src = changegif();
}
</script>
</head>
<body onload="load()">

<!-- More date stuff -->
<style>
.image {
   position: relative;
   width: 100%; /* for IE 6 */
}

h2 {
   position: absolute;
   top: 150px;
   left: 0;
   width: 100%;
}

h2 span {
   color: white;
   font: bold 24px/45px Helvetica, Sans-Serif;
   letter-spacing: -1px;
   background: rgb(0, 0, 0); /* fallback color */
   background: rgba(0, 0, 0, 0.7);
   padding: 10px;
}

h1 {
   position: absolute;
   top: 200px;
   left: 0;
   width: 100%;
}

h1 span {
   color: white;
   font: bold 24px/45px Helvetica, Sans-Serif;
   letter-spacing: -1px;
   background: rgb(0, 0, 0); /* fallback color */
   background: rgba(0, 0, 0, 0.7);
   padding: 10px;
}
</style>
<div class="image">
<img src="#" id="gif">
<h2><span>Enjoy Your</span></h2>
<br>
<h1 id="date"><span></span></h1>
</div>

</body>
</html>

如果有人知道我在做什么错，请告诉我。我尝试将功能集成到按钮中，但仍然无法正常工作。

最佳答案

删除所有您自己的<script>，然后使用此命令：

function load() {
    var day = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"][new Date().getDay()];
    document.getElementById("date").innerHTML = day;
    document.getElementById('gif').src = "/img/" + day.toLowerCase() + ".gif";
}

关于javascript - 如何在星期几之间进行照片更改？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/41515384/