有3个学生的信息，放在结构体数组中，要求输出全部学生的信息 {{10101,"Li Lin",'M',18},{10102,"Zhang Fun",'M',19},{10104,"Wang Min",'F',20}}。

好的，可以参考以下代码实现：

#include <iostream>
using namespace std;

struct Student {
    int id;
    string name;
    char gender;
    int age;
};

int main() {
    Student students[3] = {{10101,"Li Lin",'M',18},{10102,"Zhang Fun",'M',19},{10104,"Wang Min",'F',20}};

    for (int i = 0; i < 3; i++) {
        cout << "ID: " << students[i].id << endl;
        cout << "Name: " << students[i].name << endl;
        cout << "Gender: " << students[i].gender << endl;
        cout << "Age: " << students[i].age << endl << endl;
    }

    return 0;
}

输出结果如下：

ID: 10101
Name: Li Lin
Gender: M
Age: 18

ID: 10102
Name: Zhang Fun
Gender: M
Age: 19

ID: 10104
Name: Wang Min
Gender: F
Age: 20

注意：结构体数组的初始化要使用花括号括起来，每个元素之间用逗号隔开。