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How to implement local preview of jQuery uploaded images

php中世界最好的语言
php中世界最好的语言Original
2018-05-26 11:16:591976browse

This time I will bring you how to implement jQueryUploadLocal preview, implement local preview of jQuery uploaded imagesWhat are the precautions, the following is the actual combat Let’s take a look at the case. 

<!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>
Operation effect:

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