如何释放已用于C中变量的内存? [英] How to release the memory that has been used for a variable in C?

问题描述

如何释放C中用于变量(例如长字符串)的内存?

How can i release the memory that I used for a variable (e.g. a long string) in C?

推荐答案

假定您是动态分配内存的(使用malloc或其他内存分配器)，则可以使用free释放它.如果内存是静态分配的，则无法释放它.

Assuming that you allocated the memory dynamically (using malloc or another memory allocator) you free it using free. If the memory was statically allocated, you can't free it.

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