題目是這樣的：給定一個二維數組，實現一個功能函數 fn，向這個函數中傳遞這個二維數組的一個坐標，如果這個坐標的值為 ”1“，將返回和這個坐標所有相連的并且坐標值為1坐標。例如,傳遞了 fn([3,4])得到的結果為：[[3,4],[4,4],[5,4],[6,4],[7,4],[8,4],[8,5],[8,6]]var arr =[    [0,0,0,0,0,0,0,0,0,0,0],    [0,0,0,0,0,0,0,0,0,0,0],    [0,0,0,0,0,0,0,0,0,0,0],    [0,0,0,0,1,0,0,0,1,0,0],    [0,0,0,0,1,0,0,0,1,0,0],    [0,0,0,0,1,0,0,0,1,0,0],    [0,0,0,0,1,0,0,0,0,0,0],    [0,0,0,0,1,0,0,0,0,0,0],    [0,0,0,0,1,1,1,0,0,0,0],    [0,0,0,0,0,0,0,0,0,0,0],    [0,0,0,0,0,0,0,0,0,0,0],] ;