對數值做二分類 搜尋 輸入 : 一組已經按「鍵值不遞減」排序的值 要搜尋的鍵值 key 輸出 : 搜尋之過程和結果 -Category Search on the value of doing two type: one group had click " key is not diminishing," the value of sort keys to search for key outputs: the search process and result