问题
Is it possible in IE8 without using third party plugin like Java?
回答1:
Short answer : no
Long answer : how to determine the presence of HTML5 drag’n’drop file upload API
回答2:
That's a standard HTML5 feature, only supported by Chrome 4+ and Firefox 3.6+ so far. But as for IE8, expect it to be included (and working properly) by the next millenium.
来源：https://stackoverflow.com/questions/2652780/ie8-dragndrop-files-to-a-webpage