diff --git a/2.c b/2.c
new file mode 100644
index 0000000..84a0fb8
--- /dev/null
+++ b/2.c
@@ -0,0 +1,47 @@
+#include <stdio.h>
+
+// 定义学生结构体
+struct Student {
+    int id;
+    float mathScore;
+    float physicsScore;
+    float englishScore;
+    float totalScore;
+};
+
+// 函数声明
+void inputStudentInfo(struct Student* student);
+void displayStudentInfo(struct Student* student);
+
+int main() {
+    // 定义三个学生
+    struct Student student1, student2, student3;
+
+    // 输入学生信息
+    inputStudentInfo(&student1);
+    inputStudentInfo(&student2);
+    inputStudentInfo(&student3);
+
+    // 显示学生信息
+    displayStudentInfo(&student1);
+    displayStudentInfo(&student2);
+    displayStudentInfo(&student3);
+
+    return 0;
+}
+
+// 输入学生信息的函数
+void inputStudentInfo(struct Student* student) {
+    scanf("%d", &student->id);
+    scanf("%f", &student->mathScore);
+    scanf("%f", &student->physicsScore);
+    scanf("%f", &student->englishScore);
+
+    // 计算总成绩
+    student->totalScore = student->mathScore + student->physicsScore + student->englishScore;
+}
+
+// 显示学生信息的函数
+void displayStudentInfo(struct Student* student) {
+    printf("%d  %.1f  %.1f  %.1f  %.1f\n", student->id, student->mathScore, student->physicsScore, student->englishScore, student->totalScore);
+}
\ No newline at end of file