[問題] stdio問題
呼叫stdio.h
stdio.h裡有
extern char _getkey (void);
extern char getchar (void);
extern char ungetchar (char);
extern char putchar (char);
extern int printf (const char *, ...);
extern int sprintf (char *, const char *, ...);
extern int vprintf (const char *, char *);
extern int vsprintf (char *, const char *, char *);
extern char *gets (char *, int n);
extern int scanf (const char *, ...);
extern int sscanf (char *, const char *, ...);
extern int puts (const char *);
是不是這些都可以直接使用呢?
需要另外定義TBUF,RBUF陣列來放SBUF資料嗎?
如:http://www.keil.com/download/files/intsio2.zip
我看有些demo都另外寫getkey,putchar
這是為什麼呢?
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※ 編輯: BlueFeel 來自: 123.195.194.110 (03/11 20:27)
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