diff --git a/first_pr.txt b/first_pr.txt
new file mode 100644
index 0000000000000000000000000000000000000000..13081e4750768e30f85ceb390749e2b5fc718218
--- /dev/null
+++ b/first_pr.txt
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+int main()
+{
+    char continue_flag = 'Y';
+    char input_buffer[1024];
+
+    while (continue_flag == 'Y' || continue_flag == 'y')
+    {
+        printf("please input filenames: ");
+        fgets(input_buffer, sizeof(input_buffer), stdin);
+        input_buffer[strcspn(input_buffer, "\n")] = '\0'; // 移除换行符
+
+        // 处理多个文件名（支持逗号或空格分隔）
+        char *filename = strtok(input_buffer, ", ");
+        int first_file = 1;
+
+        while (filename != NULL)
+        {
+            double digit;
+            pgm_to_matrix(filename, 28, 28, (double[28][28]){0}); // 初始化矩阵
+
+            // 调用识别函数
+            recognize_digit(filename, &digit);
+
+            // 输出结果
+            if (first_file)
+            {
+                printf("%s: %.0f", filename, digit);
+                first_file = 0;
+            }
+            else
+            {
+                printf(", %s: %.0f", filename, digit);
+            }
+
+            filename = strtok(NULL, ", ");
+        }
+        printf("\n");
+
+        // 检查是否继续
+        printf("do you want to continue? please input [Y or N]: ");
+        scanf(" %c", &continue_flag);
+        getchar(); // 消耗缓冲区残留字符
+    }
+
+    printf("Bye\n");
+    return 0;
+}
\ No newline at end of file
diff --git a/text.txt b/text.txt
new file mode 100644
index 0000000000000000000000000000000000000000..273c1a9ffdc201dbca7d19b275bf1cbc88aaa4cb
--- /dev/null
+++ b/text.txt
@@ -0,0 +1 @@
+This is a test.
\ No newline at end of file