c的free注意事项和c++的简洁(析构大哥)

 1 #include <iostream>
 2 
 3 using namespace std;
 4 //
 5 ////c语言版本
 6 //struct stu
 7 //{
 8 //    char *name;
 9 //    int age;
10 //};
11 //int main()
12 //{
13 //    stu *ps = (stu *)malloc(sizeof(stu));
14 //    ps->name = (char *)malloc(1000);//注意上面一句完了必须用这一句 name才会右空间
15 //    strcpy(ps->name,"dfd");
16 //
17 //    //free(ps);//不能直接free
18 //    free(ps->name);
19 //    free(ps);
20 //    return 1;
21 //}
22 
23 //c++多简洁
24 class stu
25 {
26 public:
27     stu()
28     {
29         name = new char[1000];
30     }
31     ~stu()
32     {
33         delete []name;
34     }
35 public:
36     char *name;
37     int age;
38 };
39 
40 int main()
41 {
42     stu *ps = new stu;
43 
44     strcpy(ps->name,"dfasdf");
45     delete(ps);
46     return 1;
47 }