diff --git a/.DS_Store b/.DS_Store
index b6510ba..f6a6b61 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/input.c b/input.c
index 91cb3e3..452cf6c 100644
--- a/input.c
+++ b/input.c
@@ -1,33 +1,49 @@
 #include "mysyslib.h"
 
+void Print(Student*student){
+    printf("%s,%s,%s,%.1lf,%.1lf,%.1lf,%.1lf\n",&student->id,&student->class,&student->name,student->score1,student->score2,student->score3,student->score);
+}
+
+void allPrint(ss*stu){
+    for(int i = 0; i < stu->nums; ++i){
+        Print(&stu->student[i]);
+    }
+}
+
 void input(ss*stu){
-    char *tmp = (char*)malloc(sizeof(char)*3);
+    char tmp[3];
     do{
+        int pst = stu->nums;
         printf("Id  ");
-        // get
+        scanf("%s",&stu->student[pst].id);
         printf("\n");
-
+        
         printf("class  ");
-        // get
+        scanf("%s",&stu->student[pst].class);
         printf("\n");
-
+        
         printf("name  ");
-        // get
+        scanf("%s",&stu->student[pst].name);
         printf("\n");
-
+        
         printf("score1  ");
-        // get
+        scanf("%lf",&stu->student[pst].score1);
         printf("\n");
-
+        
         printf("score2  ");
-        // get
+        scanf("%lf",&stu->student[pst].score2);
         printf("\n");
-
+        
         printf("score3  ");
-        // get
+        scanf("%lf",&stu->student[pst].score3);
         printf("\n");
-
+        
+        stu->student[pst].score = stu->student[pst].score1 + stu->student[pst].score2 + stu->student[pst].score3;
+        stu->nums++;
+        
         printf("continue?\n");
         scanf("%s",tmp);
-    }while(strcmp(tmp,"yes"));
+    }while(!strcmp(&tmp,"yes"));
+    
+    return;
 }