C++ new VS malloc 區別

原創 zhuhuiyu_ 2020-02-21 23:56

C語言使用malloc動態分配空間，C++使用new動態分配空間，功能是差不多的，但他們的區別還是很大的。


1 new 關鍵字是C++的一部分，malloc是由C語言庫提供的函數

2 new以具體類型爲單位進行內存分配，malloc只以字節爲單位進行內存分配

3 new在申請單個類型變量時可進行初始化，malloc不具備內存初始化的特徵（使用memset函數初始化）


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