crazy pointer

#include <stdio.h>
#include <malloc.h>
#include <string.h>
struct Student
{
char* name;
int age;
};

int main(int argc,char* argv[])
{
struct Student s;

//s.name = (char*)malloc(sizeof(char)*20);  //少了这句，就会使s.name变成野指针

strcpy(s.name,"LI");

s.age = 23;

return 0;
}