VIEWSTATE是什么东西?
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="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" />
</div>
比如这是我从我自己做的一个页面里拿出来,发现这个东西特别长,我听说这个东西多了就说明自己写的东西效率很差,不知道是不是这么回事,如果是,应该怎么避免呢