C类范围包括哪些内容呢？

本文共计187个文字，预计阅读时间需要1分钟。

我是从Objective-C转到C，并遇到了问题……这有效：- function1(char *filePath) { Box box(filePath); // construct/create a box using filePath // can use box in this function and destructor is called when function exits } 但我需要‘’

我是从Objective C来到C并遇到问题……
这有效： –

function1(char *filePath) { Box box(filePath); // construct/create a box using filePath // can use box in this function and destructor is called when function exits }

但是我需要这样的东西,其中function1和function2是异步调用的.

Box *boxPool[25]; // a pool of 25 box pointers function1(int item, char *filePath) { boxPool[item](filePath); // construct/create a box, store a pointer in boxPool that is retained on exit } function2(int item) { // use the box from boxPool[item] and then destruct/release it on exit } 也许：

void function1(int item, char *filePath) { boxPool[item] = new Box(filePath); } void function2(int item) { //use boxPool[item] delete boxPool[item]; boxPool[item] = NULL; }