A.int x;IPointer *y =&x;B.double x;IPointer y =&x;C.int x;IPointer y =x;D.int x;IPointer y =&x;
A.語法錯誤,不能執(zhí)行B.4C.1D.5
A.提高函數(shù)的執(zhí)行效率B.加強函數(shù)間的內(nèi)部聯(lián)系C.提高函數(shù)的開發(fā)效率D.便于重用函數(shù)代碼