优化代码结构

config.h

@@ -1,10 +1,10 @@
 #ifndef _CONFIG_H_
 #define _CONFIG_H_
 
-struct CONFIG {
+struct config_t {
     char pwd[64];  //password
     char sps[64];  //set password
 };
-typedef struct CONFIG CONFIG;
+typedef struct config_t config_t;
 
 #endif