FormData 获取不到值

Question

<form id="file">

    <input accept="audio/*" name="file" id="test" type="file" />上传语音文件

    <button style="position: absolute;bottom: 0;left: -40px;" @click="test()">上传</button>

</form>

var file = new FormData(document.getElementById("file"));

console.log(file);

https://jsfiddle.net/4g639vwz/

为啥获取不到值，打印的是空的！

Answer 1

你要这样打印：for (var [key, value] of file.entries()) {&nbsp;&nbsp; console.log(key, value);}