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FormData()上传图片

<!doctype html>
<html lang="zh">
<head>
<meta charset="utf-8">
<title>HTML5 Ajax Uploader</title>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
</head>

<body>
<p><input type="file" id="upfile"></p>
<p><input type="button" id="upJS" value="用原生JS上传"></p>
<p><input type="button" id="upJQuery" value="用jQuery上传"></p>
<div id="myDiv"></div>
<script>
/*原生JS版*/
document.getElementById("upJS").onclick = function() {
 /* FormData 是表单数据类 */
 var fd = new FormData();
 var ajax = new XMLHttpRequest();
 fd.append("uploads", 1);
 /* 把文件添加到表单里 */
 fd.append("upfile", document.getElementById("upfile").files[0]);
 ajax.open("post", "up.php", true);
 

 ajax.onload = function () {
 console.log(ajax.responseText);
 document.getElementById("myDiv").innerHTML=ajax.responseText;
 var imgurl=.innerHTML=ajax.responseText;
 };
 ajax.send(fd);
 
}

/* jQuery 版 */
$('#upJQuery').on('click', function() {
 var fd = new FormData();
 fd.append("upload", 1);
 fd.append("upfile", $("#upfile").get(0).files[0]);
 $.ajax({
 url: "test.php",
 type: "POST",
 processData: false,
 contentType: false,
 data: fd,
 success: function(d) {
  console.log(d);
 }
 });
});
</script>
</body>

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