如果是数据本来就是一个array， 可以用寻址把要的数据拿出来。

如果要把结果直接得到， 可以考虑
>> help deal
deal Deal inputs to outputs.
     [A,B,C,...] = deal(X,Y,Z,...) simply matches up the input and
        output lists.  It is the same as A=X, B=Y, C=Z, ...
     [A,B,C,...] = deal(X) copies the single input to all
        the requested outputs.  It is the same as A=X, B=X, C=X, ...