<input type="file" accept="image/*" capture="camera">   　　//调用相册和摄像头
<input type="file" accept="video/*" capture="camcorder">　　//视频
<input type="file" accept="audio/*" capture="microphone">　　//音频

<input type="file" id="file" name="file" accept="image/*" />

<input type="file" id="file" name="file" accept="image/*" multiple />

var file = document.getElementById("file");
console.log(file.files);

var form = new FormData();

form.append("fileImg",file.files);

$.ajax({type: "post",url: "传输的地址",data: form,contentType: false, // 注意这里应设为falseprocessData: false,    //falsecache: false,    //缓存success: function(data){console.log(data);      }
})

<form id="formTest"><input type="text" name="name1" /><input type="text" name="name2"/><input type="file" name="file" id="file"/>
</form>

var formTest = document.getElementById("formTest");
var form = new FormData(formTest);

<div class="pic" id="wholeImg"><img id="img1" src="img/a11.png"/></div>
<input type="file" name="whole" id="whole" style="display: none;" capture="camera" onchange="previewImg(this)" />

$("#wholeImg").click(function(){$("#whole").click();
})function previewImg(file){//判断是否支持FileReaderif (window.FileReader) {var reader = new FileReader();} else {alert("您的设备不支持图片预览功能，如需该功能请升级您的设备！");}var preDiv = document.getElementById("wholeImg");//获取图片if (file.files && file.files[0]){var reader = new FileReader(); reader.onload = function(e){  var img = document.getElementById("img1");img.setAttribute("src",e.target.result);}reader.readAsDataURL(file.files[0]);}
}