BrowserVersionOwn?TypeAs String
Chrome94.0.4590???
Edge92.0.902ownobject[object Storage]
Firefox90.0.0ownobject[object Storage]
Java11.0.10???

PropertiesChromeEdgeFirefoxJava
clear 91.0.4472 92.0.902 90.0.0?
constructor????
getItem 91.0.4472 92.0.902 90.0.0?
key 91.0.4472 92.0.902 90.0.0?
length 91.0.4472 92.0.902 90.0.0?
removeItem 91.0.4472 92.0.902 90.0.0?
setItem 91.0.4472 92.0.902 90.0.0?
sxt-user????