diff --git a/test0524.c b/test0524.c
new file mode 100644
index 0000000000000000000000000000000000000000..8362c33b85f6795e4cdaa826b01b935d78c0dbda
--- /dev/null
+++ b/test0524.c
@@ -0,0 +1,35 @@
+#include<stdio.h>
+#include<stdlib.h>
+typedef struct{
+    int ID;
+    int math;
+    int English;
+    int C;
+    int avargrade;
+    char name[20];
+}Stu;
+int main()
+{
+    FILE*fp;
+    Stu stu[5];
+    int i,avargrade=0;
+    printf("请输入5个同学的信息：学生号，姓名，3门成绩:\n");
+    for(i=0;i<5;i++)
+    {
+        scanf("%d %s %d %d %d",&(stu[i].ID),stu[i].name,&(stu[i].math),&(stu[i].English),&(stu[i].C));
+        stu[i].avargrade=(stu[i].math+stu[i].English+stu[i].C)/3;
+    }
+    
+    if((fp=fopen("stud","w"))==NULL)
+    {
+        printf("error :cannot open file!\n");
+        exit(0);
+    }
+    for(i=0;i<5;i++)
+        fprintf(fp,"%d %s %d %d %d %d\n",stu[i].ID,stu[i].name,stu[i].math,stu[i].English,
+                stu[i].C,stu[i].avargrade);
+    
+    fclose(fp);
+    // system("pause");
+    return 0;
+}
\ No newline at end of file