文档介绍：序号函数原形 1 *asctime char *asctime(struct tm *tm) 2 *calloc void *calloc(unsigned nelem,unsigned elsize) 3 *cgets char *cgets(char *string) 4 *ctime char *ctime(long *clock) 5 *ecvt char *ecvt(double value,int ndigit,int *decpt,int *sign) 6 *farmalloc void *farmalloc(unsigned long size) 7 *fcvt char *fcvt(double value,int ndigit,int *decpt,int *sign) 8 *fdopen FILE *fdopen(int ahndle,char *type) 9 *fgets char *fgets(char *string,int n,FILE *stream) 10 *fopen FILE *fopen(char *filename,char *type) 11 *freopen FILE *freopen(char *filename,char *type,FILE *stream) 12 *gcvt char *gcvt(double value,int ndigit,char *buf) 13 *getcwd char *getcwd(char *buf,iint n) 14 *itoa char *itoa(int value,char *string,int radix) 15 *ltoa char *ltoa(long value,char *string,int radix) 16 *malloc void *malloc(unsigned size) 17 *py void *py(void *destin,void *source,unsigned char ch,unsigned n) 18 *memchr void *memchr(void *s,char ch,unsigned n) 19 *memcmp void *memcmp(void *s1,void *s2,unsigned n) 20 *memcpy void *memcpy(void *destin,void *source,unsigned n) 21 *memmove void *memmove(void *destin,void *source,unsigned n) 22 *memset void *memset(void *s,char ch,unsigned n) 23 *mktemp char *mktemp(char *template) 24 *parsfnm char *parsfnm(char *cmdline,struct fcb *fcbptr,int option 25 *realloc void *realloc(void *ptr,unsigned newsize) 26 *sbrk char *sbrk(int incr) 27 *searchpath char *searchpath(char *pathname) 28 *ssignal int *ssignal(int sig,int(*action)() 29 *strerror char *strerror(char *str) 30 *ultoa char *ultoa(unsigned long value,char *string,int radix) 31 _chmod int _chmod(char *filename,int func[,int attrib]) 32 _close int _close(int handle) 33 _creat int _creat(char *filename,int attrib) 34 _exit void _exit(int status) 35 _fpreset void _fpreset() 36 _lrotl unsigned long _lrotl(unsigned long value,int count) 37 _lrotr unsigned long _lrotr(unsigned long value,int count) 38 _matherr double _matherr(_mexcep why,char *fun,double *arg1p,double *arg2p,double retval ) 39 _open int _open(cha