__HTML_5读取文件API

时间：2021-06-13 07:13:57

//HTML5 __FileSystemApi

<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>无标题文档</title>

</head>

<body>

<style>

  .thumb {

    height: 75px;

    border: 1px solid #000;

    margin: 10px 5px 0 0;

  }

</style>

<input type="file" id="files" name="files[]" multiple />

<output id="list"></output>

<script>

  function handleFileSelect(evt) {

    var files = evt.target.files;

    for (var i = 0, f; f = files[i]; i++) {

      var reader = new FileReader();

      reader.onload = function(e){

          var span = document.createElement('span');

          span.innerHTML =this.result;

          document.getElementById('list').insertBefore(span, null);

      }

      reader.readAsText(f);
　　　 //reader.readAsArrayBuffer;
　　   //reader.readAsBinaryString;
 　　　//reader.readAsDataURL

    }

  }

  document.getElementById('files').addEventListener('change', handleFileSelect, false);

</script>

</body>

</html>

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