qsort() - C語言庫函數(shù)

1. qsort() - C語言庫函數(shù)

strxfrm() - C語言庫函數(shù)

1. strxfrm() - C語言庫函數(shù)

difftime() - C語言庫函數(shù)

1. difftime() - C語言庫函數(shù)

isdigit() - C函數(shù)

1. isdigit() - C函數(shù)

<limits.h> - C語言標(biāo)準(zhǔn)庫

1. <limits.h> - C語言標(biāo)準(zhǔn)庫

ldiv() - C語言庫函數(shù)

1. ldiv() - C語言庫函數(shù)

printf() - C語言庫函數(shù)

1. printf() - C語言庫函數(shù)

sin() - C函數(shù)

1. sin() - C函數(shù)

freopen() - C語言庫函數(shù)

1. freopen() - C語言庫函數(shù)

NULL - C函數(shù)

1. NULL - C函數(shù)

mktime() - C語言庫函數(shù)

1. mktime() - C語言庫函數(shù)

floor() - C函數(shù)

1. floor() - C函數(shù)

log() - C函數(shù)

1. log() - C函數(shù)

rewind() - C語言庫函數(shù)

1. rewind() - C語言庫函數(shù)

memcpy() - C語言庫函數(shù)

1. memcpy() - C語言庫函數(shù)

remove() - C語言庫函數(shù)

1. remove() - C語言庫函數(shù)

localtime() - C語言庫函數(shù)

1. localtime() - C語言庫函數(shù)

strcoll() - C語言庫函數(shù)

1. strcoll() - C語言庫函數(shù)

fgets() - C語言庫函數(shù)

1. fgets() - C語言庫函數(shù)

errno - C語言宏

1. errno - C語言宏

<stdlib.h> - C語言標(biāo)準(zhǔn)庫

1. <stdlib.h> - C語言標(biāo)準(zhǔn)庫

labs() - C語言庫函數(shù)

1. labs() - C語言庫函數(shù)

putchar() - C語言庫函數(shù)

1. putchar() - C語言庫函數(shù)

wcstombs() - C語言庫函數(shù)

1. wcstombs() - C語言庫函數(shù)

fclose() - C庫函數(shù)

1. fclose() - C庫函數(shù)

system() - C語言庫函數(shù)

1. system() - C語言庫函數(shù)

strncmp() - C語言庫函數(shù)

1. strncmp() - C語言庫函數(shù)

va_end() - C函數(shù)

1. va_end() - C函數(shù)

setlocale() - C函數(shù)

1. setlocale() - C函數(shù)

strpbrk() - C語言庫函數(shù)

1. strpbrk() - C語言庫函數(shù)

acos() - C函數(shù)

1. acos() - C函數(shù)

fabs() - C函數(shù)

1. fabs() - C函數(shù)

asctime() - C語言庫函數(shù)

1. asctime() - C語言庫函數(shù)

offsetof() - C函數(shù)

1. offsetof() - C函數(shù)

cos() - C函數(shù)

1. cos() - C函數(shù)

atoi() - C語言庫函數(shù)

1. atoi() - C語言庫函數(shù)

strftime() - C語言庫函數(shù)

1. strftime() - C語言庫函數(shù)

va_arg() - C函數(shù)

1. va_arg() - C函數(shù)

strstr() - C語言庫函數(shù)

1. strstr() - C語言庫函數(shù)

<errno.h> - C語言標(biāo)準(zhǔn)庫

1. <errno.h> - C語言標(biāo)準(zhǔn)庫

memchr() - C語言庫函數(shù)

1. memchr() - C語言庫函數(shù)

fopen() - C語言庫函數(shù)

1. fopen() - C語言庫函數(shù)

va_start() - C函數(shù)

1. va_start() - C函數(shù)

fprintf() - C語言庫函數(shù)

1. fprintf() - C語言庫函數(shù)

strrchr() - C語言庫函數(shù)

1. strrchr() - C語言庫函數(shù)

<time.h> - C語言標(biāo)準(zhǔn)庫

1. <time.h> - C語言標(biāo)準(zhǔn)庫

C語言標(biāo)準(zhǔn)庫

1. C語言標(biāo)準(zhǔn)庫

isgraph() - C函數(shù)

1. isgraph() - C函數(shù)

srand() - C語言庫函數(shù)

1. srand() - C語言庫函數(shù)

isprint() - C函數(shù)

1. isprint() - C函數(shù)

fputs() - C語言庫函數(shù)

1. fputs() - C語言庫函數(shù)

sscanf() - C語言庫函數(shù)

1. sscanf() - C語言庫函數(shù)

getc() - C語言庫函數(shù)

1. getc() - C語言庫函數(shù)

<stdarg.h> - C語言標(biāo)準(zhǔn)庫

1. <stdarg.h> - C語言標(biāo)準(zhǔn)庫

rename() - C語言庫函數(shù)

1. rename() - C語言庫函數(shù)

rand() - C語言庫函數(shù)

1. rand() - C語言庫函數(shù)

strspn() - C語言庫函數(shù)

1. strspn() - C語言庫函數(shù)

frexp() - C函數(shù)

1. frexp() - C函數(shù)

bsearch() - C語言庫函數(shù)

1. bsearch() - C語言庫函數(shù)

islower() - C函數(shù)

1. islower() - C函數(shù)

fwrite() - C語言庫函數(shù)

1. fwrite() - C語言庫函數(shù)

ispunct() - C函數(shù)

1. ispunct() - C函數(shù)

vsprintf() - C語言庫函數(shù)

1. vsprintf() - C語言庫函數(shù)

strcspn() - C語言庫函數(shù)

1. strcspn() - C語言庫函數(shù)

fgetpos() - C庫函數(shù)

1. fgetpos() - C庫函數(shù)

getchar() - C語言庫函數(shù)

1. getchar() - C語言庫函數(shù)

tmpfile() - C語言庫函數(shù)

1. tmpfile() - C語言庫函數(shù)

mbtowc() - C語言庫函數(shù)

1. mbtowc() - C語言庫函數(shù)

sprintf() - C語言庫函數(shù)

1. sprintf() - C語言庫函數(shù)

ftell() - C語言庫函數(shù)

1. ftell() - C語言庫函數(shù)

feof() - C庫函數(shù)

1. feof() - C庫函數(shù)

mblen() - C語言庫函數(shù)

1. mblen() - C語言庫函數(shù)

clearerr() - C庫函數(shù)

1. clearerr() - C庫函數(shù)

modf() - C函數(shù)

1. modf() - C函數(shù)

strncat() - C語言庫函數(shù)

1. strncat() - C語言庫函數(shù)

isspace() - C函數(shù)

1. isspace() - C函數(shù)

ctime() - C語言庫函數(shù)

1. ctime() - C語言庫函數(shù)

tmpnam() - C語言庫函數(shù)

1. tmpnam() - C語言庫函數(shù)

isupper() - C函數(shù)

1. isupper() - C函數(shù)

atol() - C語言庫函數(shù)

1. atol() - C語言庫函數(shù)

gets() - C語言庫函數(shù)

1. gets() - C語言庫函數(shù)

<setjmp.h> - C語言標(biāo)準(zhǔn)庫

1. <setjmp.h> - C語言標(biāo)準(zhǔn)庫

perror() - C語言庫函數(shù)

1. perror() - C語言庫函數(shù)

exit() - C語言庫函數(shù)

1. exit() - C語言庫函數(shù)

memmove() - C語言庫函數(shù)

1. memmove() - C語言庫函數(shù)

isalpha() - C函數(shù)

1. isalpha() - C函數(shù)

fsetpos() - C語言庫函數(shù)

1. fsetpos() - C語言庫函數(shù)

fmod() - C函數(shù)

1. fmod() - C函數(shù)

<float.h> - C語言標(biāo)準(zhǔn)庫

1. <float.h> - C語言標(biāo)準(zhǔn)庫

strtok() - C語言庫函數(shù)

1. strtok() - C語言庫函數(shù)

wctomb() - C語言庫函數(shù)

1. wctomb() - C語言庫函數(shù)

strcat() - C語言庫函數(shù)

1. strcat() - C語言庫函數(shù)

atof() - C語言庫函數(shù)

1. atof() - C語言庫函數(shù)

strchr() - C語言庫函數(shù)

1. strchr() - C語言庫函數(shù)

<locale.h> - C語言標(biāo)準(zhǔn)庫

1. <locale.h> - C語言標(biāo)準(zhǔn)庫

signal() - C函數(shù)

1. signal() - C函數(shù)

ungetc() - C語言庫函數(shù)

1. ungetc() - C語言庫函數(shù)

ferror() - C庫函數(shù)

1. ferror() - C庫函數(shù)

C語言標(biāo)準(zhǔn)庫

1. C語言標(biāo)準(zhǔn)庫

strtoul() - C語言庫函數(shù)

1. strtoul() - C語言庫函數(shù)

fseek() - C語言庫函數(shù)

1. fseek() - C語言庫函數(shù)

fscanf() - C語言庫函數(shù)

1. fscanf() - C語言庫函數(shù)

mbstowcs() - C語言庫函數(shù)

1. mbstowcs() - C語言庫函數(shù)

longjmp() - C函數(shù)

1. longjmp() - C函數(shù)

localeconv() - C函數(shù)

1. localeconv() - C函數(shù)

raise() - C函數(shù)

1. raise() - C函數(shù)

ceil() - C函數(shù)

1. ceil() - C函數(shù)

<string.h> - C語言標(biāo)準(zhǔn)庫

1. <string.h> - C語言標(biāo)準(zhǔn)庫

free() - C語言庫函數(shù)

1. free() - C語言庫函數(shù)

setvbuf() - C語言庫函數(shù)

1. setvbuf() - C語言庫函數(shù)

atan() - C函數(shù)

1. atan() - C函數(shù)

C函數(shù)庫宏 assert()

1. C函數(shù)庫宏 assert()

<stdio.h> - C語言標(biāo)準(zhǔn)庫

1. <stdio.h> - C語言標(biāo)準(zhǔn)庫

fread() - C語言庫函數(shù)

1. fread() - C語言庫函數(shù)

vfprintf() - C語言庫函數(shù)

1. vfprintf() - C語言庫函數(shù)

isxdigit() - C函數(shù)

1. isxdigit() - C函數(shù)

toupper() - C函數(shù)

1. toupper() - C函數(shù)

<ctype.h> - C語言標(biāo)準(zhǔn)庫

1. <ctype.h> - C語言標(biāo)準(zhǔn)庫

setjmp() - C函數(shù)

1. setjmp() - C函數(shù)

ldexp() - C函數(shù)

1. ldexp() - C函數(shù)

EDOM - C語言宏

1. EDOM - C語言宏

strlen() - C語言庫函數(shù)

1. strlen() - C語言庫函數(shù)

tolower() - C函數(shù)

1. tolower() - C函數(shù)

clock() - C語言庫函數(shù)

1. clock() - C語言庫函數(shù)

fflush() - C庫函數(shù)

1. fflush() - C庫函數(shù)

fgetc() - C語言庫函數(shù)

1. fgetc() - C語言庫函數(shù)

<stddef.h> - C語言標(biāo)準(zhǔn)庫

1. <stddef.h> - C語言標(biāo)準(zhǔn)庫

div() - C語言庫函數(shù)

1. div() - C語言庫函數(shù)

<math.h> - C語言標(biāo)準(zhǔn)庫

1. <math.h> - C語言標(biāo)準(zhǔn)庫

isalnum() - C函數(shù)

1. isalnum() - C函數(shù)

memset() - C語言庫函數(shù)

1. memset() - C語言庫函數(shù)

calloc() - C語言庫函數(shù)

1. calloc() - C語言庫函數(shù)

vprintf() - C語言庫函數(shù)

1. vprintf() - C語言庫函數(shù)

sqrt() - C函數(shù)

1. sqrt() - C函數(shù)

<assert.h> - C語言標(biāo)準(zhǔn)庫

1. <assert.h> - C語言標(biāo)準(zhǔn)庫

time() C語言

1. time() C語言

atexit() - C語言庫函數(shù)

1. atexit() - C語言庫函數(shù)

memcmp() - C語言庫函數(shù)

1. memcmp() - C語言庫函數(shù)

setbuf() - C語言庫函數(shù)

1. setbuf() - C語言庫函數(shù)

iscntrl() - C函數(shù)

1. iscntrl() - C函數(shù)

abs() - C語言庫函數(shù)

1. abs() - C語言庫函數(shù)

abort() - C語言庫函數(shù)

1. abort() - C語言庫函數(shù)

exp() - C函數(shù)

1. exp() - C函數(shù)

realloc() - C語言庫函數(shù)

1. realloc() - C語言庫函數(shù)

puts() - C語言庫函數(shù)

1. puts() - C語言庫函數(shù)

scanf() - C語言庫函數(shù)

1. scanf() - C語言庫函數(shù)

malloc() - C語言庫函數(shù)

1. malloc() - C語言庫函數(shù)

strerror() - C語言庫函數(shù)

1. strerror() - C語言庫函數(shù)

strtol() - C語言庫函數(shù)

1. strtol() - C語言庫函數(shù)

ERANGE - C語言宏

1. ERANGE - C語言宏

sinh() - C函數(shù)

1. sinh() - C函數(shù)

atan2() - C函數(shù)

1. atan2() - C函數(shù)

putc() - C語言庫函數(shù)

1. putc() - C語言庫函數(shù)

asin() - C函數(shù)

1. asin() - C函數(shù)

strcpy() - C語言庫函數(shù)

1. strcpy() - C語言庫函數(shù)

fputc() - C語言庫函數(shù)

1. fputc() - C語言庫函數(shù)

getenv() - C語言庫函數(shù)

1. getenv() - C語言庫函數(shù)

pow() - C函數(shù)

1. pow() - C函數(shù)

tanh() - C函數(shù)

1. tanh() - C函數(shù)

gmtime() - C語言庫函數(shù)

1. gmtime() - C語言庫函數(shù)

strtod() - C語言庫函數(shù)

1. strtod() - C語言庫函數(shù)

log10() - C函數(shù)

1. log10() - C函數(shù)

strcmp() - C語言庫函數(shù)

1. strcmp() - C語言庫函數(shù)

<signal.h> - C語言標(biāo)準(zhǔn)庫

1. <signal.h> - C語言標(biāo)準(zhǔn)庫

sscanf() - C語言庫函數(shù)

C庫函數(shù) int sscanf(const char *str, const char *format, ...) 讀取輸入一個字符串格式化。

聲明

以下是sscanf() 函數(shù)的聲明。

int sscanf(const char *str, const char *format, ...)

參數(shù)

str -- 這是C字符串函數(shù)流程作為其源中檢索數(shù)據(jù)。
format --這是C字符串，其中包含一個或多個以下項目：空白字符，非空白字符和格式說明符

格式規(guī)范遵循這個原型: [=%[*][width][modifiers]type=]

參數(shù)	描述
*	This is an optional starting asterisk indicates that the data is to be read from the stream but ignored, i.e. it is not stored in the corresponding argument.
width	This specifies the maximum number of characters to be read in the current reading operation
modifiers	Specifies a size different from int (in the case of d, i and n), unsigned int (in the case of o, u and x) or float (in the case of e, f and g) for the data yiibaied by the corresponding additional argument: h : short int (for d, i and n), or unsigned short int (for o, u and x) l : long int (for d, i and n), or unsigned long int (for o, u and x), or double (for e, f and g) L : long double (for e, f and g)
type	A character specifying the type of data to be read and how it is expected to be read. See next table.

fscanf類型說明：

type	合格輸入	參數(shù)類型
c	Single character: Reads the next character. If a width different from 1 is specified, the function reads width characters and stores them in the successive locations of the array passed as argument. No null character is appended at the end.	char *
d	Decimal integer: Number optionally preceeded with a + or - sign	int *
e,E,f,g,G	Floating yiibai: Decimal number containing a decimal yiibai, optionally preceeded by a + or - sign and optionally folowed by the e or E character and a decimal number. Two examples of valid entries are -732.103 and 7.12e4	float *
o	OctalInteger:	int *
s	String of characters. This will read subsequent characters until a whitespace is found (whitespace characters are considered to be blank, newline and tab).	char *
u	Unsigned decimal integer.	unsigned int *
x,X	Hexadecimal Integer	int *

other arguments -- 預(yù)計此功能作為額外的參數(shù)的指針指向?qū)ο蟮念愋陀伤鼈兿鄳?yīng)的％標(biāo)記指定的格式字符串內(nèi)，以相同的順序，每一個序列。

對于每一個檢索數(shù)據(jù)的格式字符串格式說明，一個額外的參數(shù)應(yīng)符合規(guī)定。如果要存儲一個你應(yīng)該先于它的標(biāo)識符引用操作的常規(guī)變量上一個sscanf的操作結(jié)果，即一個符號符號（＆），像：int n; sscanf (str,"%d",&n);

返回值

如果成功，函數(shù)返回充滿變量的數(shù)量。在故障之前可以成功地讀取任何數(shù)據(jù)輸入的情況下，返回EOF。

例子

下面的例子演示了如何使用 sscanf() 函數(shù)。

#include <stdio.h>
#include <stdlib.h>

int main()
{
   int day, year;
   char weekday[20], month[20], dtm[100];

   strcpy( dtm, "Saturday March 25 1989" );
   sscanf( dtm, "%s %s %d  %d", weekday, month, &day, &year );

   printf("%s %d, %d = %s
", month, day, year, weekday );
    
   return(0);
}

讓我們編譯和運(yùn)行上面的程序，這將產(chǎn)生以下結(jié)果：

March 25, 1989 = Saturday

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