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jQuery implements preview function when uploading pictures

php中世界最好的语言
php中世界最好的语言Original
2018-04-20 17:10:202127browse

This time I will bring you jQuery to implement the preview function when uploading pictures. What are the precautions for jQuery to implement the preview function when uploading pictures? The following are Let’s take a look at practical cases. 

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jquery上传图片本地预览效果</title>
</head>
<body>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<input id="upload" type="file">
<img id="preview" src="">
<script type="text/javascript">
$('#upload').change(function(){
  // 获取FileList的第一个元素
  alert(document.getElementById('upload').files[0]);
  var f = document.getElementById('upload').files[0];
  src = window.URL.createObjectURL(f);
  document.getElementById('preview').src = src
})
</script>
</body>
</html>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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