#include <stdio.h> #include <malloc.h> #include <string>
class Student {    public:     int id;     std::string name; };
int main(int argc, char const* argv[]) {     int size = 10;     Student* st = (Student*)malloc(sizeof(Student) * size);     for (Student* i = st; i < st + size; i++) {         i->id = 123;         i->name = "qiumc";     }     // 如果要释放st内存，仅仅需要free(st);既可以，不能把st当做一个数组，进行逐个释放。     return 0; }