Question

我有3个带有整数（枚举）的数组：

static int *openEnv[] = {INGMenuItemLogon,INGMenuItemSpace,INGMenuItemAppointment,INGMenuItemInfo,INGMenuItemSettings};
static int *closedEnv[] = {INGMenuItemLogoff,INGMenuItemSpace,INGMenuItemOverview,INGMenuItemAccounts,INGMenuItemTransfer,INGMenuItemAnalyse,INGMenuItemAppointment,INGMenuItemInfo,INGMenuItemSettings};
int *currentEnv[];

如果用户点击按钮，我希望currentEnv更改为openEnv或closedEnv

- (void) tap
{
    if( closed ) currentEnv = closedEnv;
    else currentEnv = openEnv;
}

但这会产生构建错误。 openEnv和closedEnv有两种不同的尺寸，我应该怎么做才能复制它？我能做什么才能引用或复制到静态数组？

Answer 1

试试这个：

static int *openEnv[] = {INGMenuItemLogon,INGMenuItemSpace,INGMenuItemAppointment,INGMenuItemInfo,INGMenuItemSettings};
static int *closedEnv[] = {INGMenuItemLogoff,INGMenuItemSpace,INGMenuItemOverview,INGMenuItemAccounts,INGMenuItemTransfer,INGMenuItemAnalyse,INGMenuItemAppointment,INGMenuItemInfo,INGMenuItemSettings};
//int *currentEnv[];
int **currentEnv;

- (void) tap
   {
     if( closed ) 
        currentEnv = closedEnv;
     else 
        currentEnv = openEnv;
   }

Answer 2

只需使用：int ** currentEnv = <the array>

Answer 3

您已将指针数组声明为int 。正确的是

static int openEnv[] = {INGMenuItemLogon,INGMenuItemSpace,INGMenuItemAppointment,INGMenuItemInfo,INGMenuItemSettings};
static int closedEnv[] = {INGMenuItemLogoff,INGMenuItemSpace,INGMenuItemOverview,INGMenuItemAccounts,INGMenuItemTransfer,INGMenuItemAnalyse,INGMenuItemAppointment,INGMenuItemInfo,INGMenuItemSettings};

（没有星号*）声明int和

的数组

int *currentEnv;

作为int的指针。然后你可以分配例如currentEnv = openEnv，currentEnv指向openEnv的元素。

iOS如何复制/引用C-Array？

3 个答案: