Such objects can be safely allocated on the stack instead of the heap.
这样的对象可以安全地在堆栈上而不是在堆上分配。
In either case, the string literals will not be allocated on the stack.
在任一情况下，该字符串将不会在堆栈上分配。
But blocks are a special kind of object that is normally allocated on the stack.
但块是一种特殊的对象，通常是在堆栈上分配。
All the stack frames are allocated in a region of memory called the call stack.
所有栈帧被分配在称为调用栈的内存区域。
All the stack frames are allocated in a region of memory called the call stack.
所有栈帧被分配在称为调用栈的内存区域。
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