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The difference between heap and stack
Heap and stack are two common memory allocation mechanisms in computers. They are very different in the way of memory management, allocation and usage scenarios. This article will introduce in detail the characteristics, differences and respective usage scenarios of heap and stack. PHP Chinese website has brought you relevant tutorials and articles. Welcome everyone to come and learn and read.
What is the difference between heap and stackThe difference between heap and stack is: 1. The stack is a linear data structure, while the heap is a tree-like data structure; 2. The memory allocation method of the stack is automatic, while the memory allocation and release of the heap require manual management ; 3. The memory allocation speed of the stack is relatively fast, while the memory allocation speed of the heap is slower; 4. The size of the stack is fixed, but the size of the heap can be dynamically adjusted as needed; 5. The stack is suitable for managing local variables , function calls and recursion, etc., while the heap is suitable for data that needs to be stored for a long time, dynamic data structures and large data, etc.
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