C++ 申请和释放动态堆内存

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void funcc(){

	// C++的写法在开辟和释放内存时，会调用构造函数和析构函数
	// 动态申请堆内存，保存对象
	Teacher *t1 = new Teacher("Jack");
	// 释放堆内存
	delete t1;

	// C的写法在开辟和释放时，不会调用构造函数和析构函数
	Teacher *t2 = (Teacher*)malloc(sizeof(Teacher));
	free(t2);
}

void funA(){
	// C数组
	int *p1 = (int*)malloc(sizeof(int)* 10);
	p1[0] = 1;
	free(p1);

	// C++
	int *p2 = new int[10];
	p2[0] = 2;
	delete[] p2;
}