1 //new在堆区开辟数据，手动开辟，手动释放
2 #include <iostream>
3 using namespace std;
4 //1.new的基本语法
5 int* func()
6 {
7 //new返回的是指针
8 int* p = new int(10);
9 return p;
10 }
11 void test01()
12 {
13 int* p = func();
14 cout << *p << endl;
15 delete p;
16 }
17 //2.在堆区创建整型数组
18 void test02()
19 {
20 //创建10个整型数据数组
21 int *arr = new int[10];
22 for (int i = 0; i < 10; i++)
23 {
24 arr[i] = i + 100;
25 }
26 for (int i = 0; i < 10; i++)
27 {
28 cout << arr[i]<< endl;
29 }
30 //delete数组
31 delete[] arr;
32 }
33 int main()
34 {
35 test01();
36 test02();
37 return 0;
38 }
