举例:
typedef struct _ssidCfg_
{
unsigned char ret;
unsigned char scanSsid;
unsigned char priority;
unsigned char encryption;
unsigned char ssid[32];
unsigned char passwd[32];
}ssidCfg, *pSsidCfg;
加了下划线的命名只是为了说明此结构体变量是基本的那个变量，只是为了和后面没有加下划线的做区别而已
原文：http://www.cnblogs.com/judes/p/6747578.html