/** * 拖拽实现 */ var dropbox = document.getElementById("dropbox"); dropbox.addEventListener("dragenter", function(e){ e.stopPropagation(); e.preventDefault(); }, false); dropbox.addEventListener("dragover", function(e){ e.stopPropagation(); e.preventDefault(); }, false); dropbox.addEventListener("drop", function(e){ e.stopPropagation(); e.preventDefault(); var dt = e.dataTransfer; var files = dt.files; // files[0]即为第一个文件 }, false);

For details, please refer to: Selecting files through drag and drop operations

I also recommend you an example I wrote:
Select image files - supports three input methods (input box selection, drag and drop selection, screenshot and paste three input methods)