userData localstorage 存储位置

chrome localstorage：
Windows 7 8: C:\Users\_username_\AppData\Local\Google\Chrome\User Data\Default\
Windows XP: C:\Documents and Settings\_username_\Local Settings\Application Data\Google\Chrome\User Data\Default\
Mac OS X: ~/Library/Application Support/Google/Chrome/Default/
Linux: ~/.config/google-chrome/Default/

ie userData/localstorage:
Windows8 ie10:C:\Users\_username_\AppData\Local\Microsoft\Internet Explorer
              C:\Users\_username_\AppData\LocalLow\Microsoft\Internet Explorer

Windows XP ie6,ie7,ie8: C:\Documents and Settings\_username_\UserData\

万恶的ie，ie10中的localstorage实现机制尽然只是对userData升级