html5本地存儲（僅僅記錄自己已經用到的知識）

存儲資料：
            window.localStorage.setItem('key', score1);
             window.localStorage.setItem('key1', zhi1);
             window.localStorage.setItem('key2', zhi2);
             window.localStorage.setItem('key3', zhi3); 
          擷取資料：
         var score1 = localStorage.getItem(localStorage.key(0));
          var zhi1 = localStorage.getItem(localStorage.key(1));
          var zhi2 = localStorage.getItem(localStorage.key(2));
          var zhi3 = localStorage.getItem(localStorage.key(3));