diff --git a/main.c b/main.c
index 35cafc5..3b0d403 100644
--- a/main.c
+++ b/main.c
@@ -7,7 +7,7 @@
  */
 
 /* -------------------------------------------------------------------------- */
-/* 仅支持{ Ver 3.04 }版本RENIX观测值文件与广播星历文件读取                    
+/* 仅支持{ Ver 3.04 }版本RINEX观测值文件与广播星历文件读取                    
 /* -------------------------------------------------------------------------- */
 #include<stdio.h>
 #include<stdlib.h>
@@ -95,4 +95,4 @@ while(over == 0)
 	}
 	system("pause");
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/terminal.h b/terminal.h
index 4cba63e..1d3db7b 100644
--- a/terminal.h
+++ b/terminal.h
@@ -14,7 +14,7 @@ typedef struct
 int Begin_inTermianl()
 {
     int langop;
-    printf("|**************SPP-pseudorange-positioning*****************************************|\n");
+        printf("|**************SPP-pseudorange-positioning*****************************************|\n");
 	printf("**@Author: KenanZhu\n**@Date: 2024/09/21\n**@Make by: C & Python & Matlab\n");
 	printf("**@INTRO: \n**The main functions of the software include:\n");
 	printf("**read RINEX3.04 files, and output three formats of document files,\n");
@@ -134,4 +134,4 @@ void End_inTerminal(FILE *fp_nav, FILE *fp_obs, int langop, int over)
         }
 }
 
-#endif
\ No newline at end of file
+#endif