A.瀏覽器被關(guān)閉后,sessionStorage對(duì)象保存的數(shù)據(jù)也會(huì)丟失B.indexedDB跟MySQL、SQL Server一樣,都是關(guān)系數(shù)據(jù)庫(kù)C.localStorage和sessionStorage都是window對(duì)象下的子對(duì)象D.indexedDB用于永久保存客戶(hù)端的大量數(shù)據(jù)
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