<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="cb1" type="checkbox" checked>
<input id="cb2" type="checkbox" checked >
<button id="clearall">Click me</button>
答案 0 :(得分:1)
我认为retriveFile(...)不会关闭流。尝试刷新它并在返回true后关闭它(outputStream1)