struct student input_stu(){
    char country[20];
    char city[20];
    char road[20];
    int xh;
    char name[20];
    char grendar[20];
    int age;
    struct student stu = {0, "Null", "Null", 0,{"Null", "Null", "Null"}};
    printf("plz input studnet's xh!\n xh:");
    scanf("%d",xh);
           stu.xh = xh;
    printf("plz input studnet's name!\n Name:");
    fgets(name, sizeof(name), stdin);
    strcpy(stu.name ,name);
    system("clear");
    printf("plz input studnet's grender!\n Grender:");
    fgets(grendar, sizeof(grendar), stdin);
    strcpy(stu.grendar , grendar);
    system("clear");
    printf("plz input studnet's age!\n Age:");
    scanf("%d",age);
    stu.age = age;
    system("clear");
    printf("plz input studnet's country!\n Country:");
    fgets(country, sizeof(country), stdin);
    strcpy(stu.addr.country , country);
    system("clear");
    printf("plz input studnet's city!\n City:");   
    fgets(city, sizeof(city), stdin);
    strcpy(stu.addr.city ,city);
    system("clear");
    printf("plz input studnet's city road\n Road:");
    fgets(road, sizeof(road), stdin);
    strcpy(stu.addr.road , road);
    return stu;

}

我想完成结构体里面参数的赋值，但是一直警告和报错，有大神帮忙解决一下吗？

scanf("%d",&xh);
scanf("%d",&age);