use typedef

Author: DataEraserC

c/koishi/include/koishi.h

@@ -1,10 +1,13 @@
+#ifndef _KOISHI_H_
+#define _KOISHI_H_
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-enum level {
+typedef enum level {
     easy=1,
     normal,
     hard,
     extreme
-    };
-enum level getlevet(void);
+    }LEVEL;
+LEVEL getlevet(void);
+#endif

c/koishi/src/koishi.c

@@ -1,6 +1,6 @@
 #include "../include/koishi.h"
-enum level getlevel(){
-    enum level l;
+LEVEL getlevel(){
+    LEVEL l;
     printf("please input the level number:\n\
     1.easy\n\
     2.normal\n\

c/koishi/src/main.c

@@ -1,7 +1,7 @@
 #include "../include/koishi.h"
 int main(){
     char *level[4]={"easy","normal","hard","extreme"};
-    enum level l;
+    LEVEL l;
     l=getlevel();
     while (l<1||l>4){
         printf("the number you input(%d) is not listed\nplease input again:\n",l);