锘??xml version="1.0" encoding="utf-8" standalone="yes"?>在线成人激情黄色,久久久久久夜,欧美影院在线 http://m.shnenglu.com/ivenher/category/485.htmlzh-cn Thu, 22 May 2008 07:30:40 GMT Thu, 22 May 2008 07:30:40 GMT 60 C璇█涓鏃墮棿鍜屾棩鏈熺殑澶勭悊 http://m.shnenglu.com/ivenher/articles/33195.html鐖遍キ鐩?/dc:creator>鐖遍キ鐩?/author>Sat, 29 Sep 2007 07:35:00 GMT http://m.shnenglu.com/ivenher/articles/33195.html http://m.shnenglu.com/ivenher/comments/33195.html http://m.shnenglu.com/ivenher/articles/33195.html#Feedback 3 http://m.shnenglu.com/ivenher/comments/commentRss/33195.html http://m.shnenglu.com/ivenher/services/trackbacks/33195.html
C璇█涓鏃墮棿鍜屾棩鏈熺殑澶勭悊
Chuck Allison
Chuck Allison 鏄洂婀栧煄鍦?/span>Latter Day 鏁欏爞鎬婚儴涓嬭剁ǎ鏁欏爞瀹舵棌鍘嗗彶鐮旂┒澶勭殑杞歡浣撶郴璁捐甯?/span>銆備粬鎷ユ湁鏁板瀛﹀+鍜屾暟瀛︾澹浣嶃備粬浠?/span>1975 騫磋搗寮濮嬬紪紼嬶紝浠?/span>1984 騫磋搗浠栧紑濮嬩粠浜?/span>c 璇█鐨勬暀瀛﹀拰寮鍙戙備粬鐩墠鐨勫叴瓚f槸闈㈠悜瀵硅薄鐨勬妧鏈強鍏舵暀鑲層備粬鏄?/span>X3J16 錛?/span>ANSI C ++ 鏍囧噯鍖栧鍛樹細鐨勪竴鍛樸?/span>鍙戦?/span>e-mail鍒?/span>allison@decus.org 錛屾垨鑰呮嫧鎵撶數璇濆埌 (801)240-4510 鍧囧彲浠ヤ笌浠栧彇寰楄仈緋匯?/span>
澶ч儴鍒嗙殑鎿嶄綔緋葷粺鏈夊姙娉曞緱鍒板綋鍓嶇殑鏃ユ湡鍜屾椂闂淬傞氳繃瀹氫箟鍦?em>time.h 鐨勫簱鍑芥暟錛?span>ANSI C鑳戒互璁稿涓嶅悓鐨勫艦寮忓緱鍒拌繖涓俊鎭傚嚱鏁?em>time榪斿洖涓涓被鍨嬩負time_t 鐨勫鹼紙閫氬父涓簂ong錛夛紝璇ュ嚱鏁板湪榪愯鏈熼棿瀵瑰綋鍓嶇殑鏃ユ湡鍜屾椂闂磋繘琛岀紪鐮併傜劧鍚庝綘鍙互灝嗚繖涓繑鍥炲間紶閫掔粰鍏朵粬鑳藉璇ュ艱繘琛岃В鐮佸拰鏍煎紡鍖栫殑鍑芥暟銆?/span>
Listing 1 涓殑紼嬪簭浣跨敤鍑芥暟time 錛?em>localtime鍜?em>strftime浠ヤ笉鍚岀殑褰㈠紡杈撳嚭褰撳墠鐨勬棩鏈熷拰鏃墮棿銆傚嚱鏁?em>localtime鎶婂凡緇忕紪鐮佺殑鏃墮棿瑙g爜鎴愬涓嬬殑 struct 錛?/font>
struct tm
{
int tm_sec; /* (0 - 61) */
int tm_min; /* (0 - 59) */
int tm_hour; /* (0 - 23) */
int tm_mday; /* (1 - 31) */
int tm_mon; /* (0 - 11) */
int tm_year; /* past 1900 */
int tm_wday; /* (0 - 6) */
int tm_yday; /* (0 - 365) */
int tm_isdst; /* daylight savings flag */
};
姣忔褰撲綘璋冪敤 localtime 鐨勬椂鍊欙紝瀹冧細閲嶅啓涓涓潤鎬佺殑緇撴瀯騫惰繑鍥炶緇撴瀯鐨勫湴鍧錛堝洜姝ゅ悓涓鏃跺埢鍦ㄤ竴涓▼搴忎腑鍙兘鍙栧緱涓涓繖鏍風殑緇撴瀯錛岃屼笉鑳藉仛鏄庢樉鐨勬嫹璐濓級銆傚嚱鏁?/font> ctime 榪斿洖涓涓寚鍚戦潤鎬佸瓧絎︿覆鐨勬寚閽堬紝璇ュ瓧絎︿覆浠ユ爣鍑嗙殑鏍煎紡鍖呭惈浜嗗畬鏁寸殑鏃墮棿鍜屾棩鏈熴?/font> strftime 鏍規嵁鐢ㄦ埛鐨勬寚瀹氭牸寮忔牸寮忓寲瀛楃涓詫紙渚嬪錛?/span>%A 浠h〃涓鍛ㄤ腑姣忎竴澶╃殑鍚嶇О 錛夈?/span>Table 1 鍒楀嚭浜嗘牸寮忔弿榪扮鐨勫畬鏁村垪琛ㄣ?/span>
鏃墮棿/鏃ユ湡榪愮畻
閫氳繃鏀瑰彉tm 緇撴瀯閲岀殑鍊鹼紝鍙鏃墮棿/鏃ユ湡榪涜榪愮畻銆?a >Listing 2涓殑紼嬪簭灞曠ず浜嗗浣曡綆楀皢鏉ユ煇澶╃殑鏃ユ湡鍜屼互縐掍負鍗曚綅鎵璁$畻鍑虹殑紼嬪簭鎵ц鏃墮棿銆傛敞鎰忓嚱鏁?em>time鐨勮娉曪紙鍙傛暟time_t 鐢卞湴鍧浼犲叆錛屽茍闈炰綔涓哄嚱鏁扮殑榪斿洖鍊鹼級銆傚嚱鏁?em>mktime鏀瑰彉tm 緇撴瀯鐨勫鹼紝浠ヤ究鏃ユ湡鍜屾椂闂村湪涓涓悎閫傜殑鑼冨洿鍐咃紝涔嬪悗day-of-week (tm_wday )鍜宒ay-of-year (tm_yday )鍩熻繘琛岀浉搴旂殑鏇存柊銆?em>mktime灝?em>tm緇撴瀯涓棩鏈熷拰鏃墮棿鐨勫肩疆浜庡悎閫傜殑鑼冨洿涔嬪唴錛岀浉搴旂殑鏇存柊day of week (tm-wday )鍜宒ay of year (tm-yday )鐨勫箋傝繖縐嶆儏鍐靛彂鐢熷湪褰撲竴涓棩鏈熻秴鍑轟簡浣犵殑瀹炵幇鑳藉鏀寔鐨勮寖鍥寸殑鏃跺欍備緥濡傦紝鎴戠殑MS-DOS鐨勭紪璇戝櫒涓嶈兘緙栫爜1970騫?鏈堜喚涔嬪墠鐨勬棩鏈熴傚嚱鏁?em>asctime榪斿洖tm 鍙傛暟鎵鎻忚堪鏃墮棿鐨勬爣鍑嗗瓧絎︿覆錛堝洜姝?em>ctime (&tval)涓巃sctime (localtime(&tval) 鏄浉絳夌殑)銆傚嚱鏁?em>difftime榪斿洖鐢ㄧ鍋氬崟浣嶇殑涓や釜time_t 鐨勫樊銆?/span>
濡傛灉闇瑕佸鐞嗚秴鍑虹郴緇熻寖鍥寸殑鏃ユ湡錛屾垨鑰呴渶瑕佽綆椾袱涓棩鏈熺殑闂撮殧鍙堜笉鏄敤縐掓潵鍋氬崟浣嶏紝閭d綘闇瑕佽璁¤嚜宸辯殑date緙栫爜銆?a >Listing 3 鍒?a >Listing 5涓殑搴旂敤紼嬪簭閫氳繃浣跨敤涓涓畝鍗曠殑month-day-year緇撴瀯錛屽睍紺轟簡紜畾涓や釜鏃ユ湡闂撮殧鐨勫勾鏁般佹湀浠芥暟鍜屽ぉ鏁扮殑鎶鏈傛棩鏈熺殑鐩稿噺灝卞儚浣犲湪灝忓閲屽仛鐨勫噺娉曢偅鏍鳳紙渚嬪錛岄鍏堣繘琛屽ぉ鏁扮殑鐩稿噺錛屽鏋滈渶瑕佸氨鍚戞湀浠芥暟鍊熶綅錛屼互姝ょ被鎺級銆傛敞鎰忚煩榪囩殑騫翠喚閮借璁$畻榪涘幓浜嗐備負浜嗙畝鐣ヨ搗瑙侊紝date_interval 鍑芥暟鍋囪鏃ユ湡閮芥槸鏈夋晥鐨勶紝騫朵笖絎竴涓棩鏈熷湪絎簩涓棩鏈熶箣鍓嶃傚嚱鏁拌繑鍥炰竴涓寚鍚戦潤鎬?em>Date緇撴瀯鐨勬寚閽堬紝璇ョ粨鏋勫寘鍚簡鎴戜滑鎯寵鐨勭瓟妗堛?/span>
鏂囦歡鏃墮棿/鏃ユ湡鎴?/span>
澶у鏁版搷浣滅郴緇熶負鏂囦歡緇存姢鏃墮棿/鏃ユ湡鎴熾傝嚦灝戜綘鑳藉緱鐭ヤ竴涓枃浠舵渶鍚庤淇敼鐨勬椂闂淬傦紙甯哥敤鐨?em>make宸ュ叿浣跨敤榪欎竴淇℃伅鏉ュ喅瀹氫竴涓枃浠舵槸鍚﹂渶瑕佽閲嶆柊緙栬瘧錛屾垨鑰呬竴涓簲鐢ㄧ▼搴忔槸鍚﹂渶瑕佽閲嶆柊榪炴帴錛夈傜敱浜庢枃浠剁郴緇熷湪涓嶅悓騫沖彴涓婃湁鎵涓嶅悓錛屾病鏈変粈涔堥氱敤鐨勫嚱鏁板緱鍒頒竴涓枃浠剁殑鏃墮棿/鏃ユ湡鎴籌紝鍥犳ANSI 鏍囧噯娌℃湁瀹氫箟榪欐牱鐨勫嚱鏁般傜劧鑰岋紝澶у鏁版祦琛岀殑鎿嶄綔緋葷粺錛堝寘鎷琈S-DOS鍜孷AX/VMS錛夋彁渚涗簡UNIX鍑芥暟stat 錛岃鍑芥暟榪斿洖鐩稿叧鐨勬枃浠朵俊鎭紝鍖呮嫭鐢?em>time_t琛ㄧず鐨勬渶鍚庝慨鏀規椂闂淬?/span>
Listing 6 涓殑紼嬪簭浣跨敤stat 鍜?em>difftime鏉ョ‘瀹氭槸鍚?em>time1.c姣?em>time2.c鏇存柊錛堜緥濡傦紝鏄惁鏈榪戣淇敼榪囷級銆?/font>
濡傛灉浣犻渶瑕佹洿鏂頒竴涓枃浠剁殑鏃墮棿/鏃ユ湡鎴沖埌褰撳墠鏃墮棿錛屽彲綆鍗曠殑閲嶅啓鏂囦歡鐨勭涓涓瓧鑺傘傝櫧鐒跺疄闄呭唴瀹瑰茍鏈敼鍙橈紝浣嗕綘鐨勬枃浠剁郴緇熶細璁や負鏂囦歡宸茬粡琚敼鍙樹簡錛屽茍涓斾細鐩稿簲鐨勬洿鏂版椂闂?鏃ユ湡鎴熾傦紙鐭ラ亾浣犵殑鏂囦歡緋葷粺錛佸湪VAX/VMS涓嬶紝褰撲綘寰楀埌涓涓枃浠剁殑鏂扮増鏈殑鏃跺欙紝鏃х殑鐗堟湰浠嶄細琚繚鐣欙級銆傝繖縐嶆妧鏈彨鍋?#8220;‘touching’涓涓枃浠?#8221;銆?a >Listing 7涓?em>touch鐨勫疄鐜板湪鎸囧畾鏂囦歡涓嶅瓨鍦ㄧ殑鏃跺欎細鍒涘緩涓涓柊鏂囦歡銆傛敞鎰忔枃浠朵互“binary”妯″紡鎵撳紑錛堝湪鎵撳紑妯″紡瀛楃涓蹭腑鐢卞瓧絎?em>b鍐沖畾鈥斿湪灝嗘潵鐨勪笓鏍忎腑鎴戜細璇︾粏璁ㄨ鏂囦歡澶勭悊鐨勯棶棰橈級銆?/span>
琛?span>1錛?em>strftime鐨勬牸寮忔弿榪扮
Code Sample Output
---------------------------------------------
%a Wed
%A Wednesday
%b Oct
%B October
%c Wed Oct 07 13:24:27 1992
%d 07 (day of month [01-31])
%H 13 (hour in [00-23])
%I 01 (hour in [01-12])
%j 281 (day of year [001-366])
%m 10 (month [01-12])
%M 24 (minute [00-59])
%p PM
%S 27 (second [00-59] )
%U 40 (Sunday week of year [00-52])
%w 3 (day of week [0-6])
%W 40 (Monday week of year [00-52])
%x Wed Oct 7, 1992
%X 13:24:27
%y 92
%Y 1992
%Z EDT (daylight savings indicator)
Listing 1 time1.c 鈥?閲囩敤涓嶅悓鏍煎紡杈撳嚭褰撳墠鐨勬棩鏈熷拰鏃墮棿
#include <stdio.h>
#include <time.h>
#define BUFSIZE 128
main()
{
time_t tval;
struct tm *now;
char buf[BUFSIZE];
char *fancy_format =
"Or getting really fancy:\n"
"%A, %B %d, day %j of %Y.\n"
"The time is %I:%M %p.";
/* Get current date and time */
tval = time(NULL);
now = localtime(&tval);
printf("The current date and time:\n"
"%d/%02d/%02d %d:%02d:%02d\n\n",
now->tm_mon+1, now->tm_mday, now->tm_year,
now->tm_hour, now->tm_min, now->tm_sec);
printf("Or in default system format:\n%s\n",
ctime(&tval));
strftime(buf,sizeof buf,fancy_format,now);
puts(buf);
return 0;
}
/* Output
The current date and time:
10/06/92 12:58:00
Or in default system format:
Tue Oct 06 12:58:00 1992
Or getting really fancy:
Tuesday, October 06, day 280 of 1992.
The time is 12:58 PM.
*/
/* End of File */
Listing 2 time2.c 鈥?em>灞曠ず濡備綍璁$畻灝嗘潵鏌愪竴澶╃殑鏃ユ湡浠ュ強浠ョ涓哄崟浣嶈綆楀嚭鐨勬墽琛屾椂闂?/em>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
main()
{
time_t start, stop;
struct tm *now;
int ndays;
/* Get current date and time */
time(&start);
now = localtime(&start);
/* Enter an interval in days */
fputs("How many days from now? ",stderr);
if (scanf("%d",&ndays) !=1)
return EXIT_FAILURE;
now->tm_mday += ndays;
if (mktime(now) != -1)
printf("New date: %s",asctime(now));
else
puts("Sorry. Can't encode your date.");
/* Calculate elapsed time */
time(&stop);
printf("Elapsed program time in seconds: %f\n",
difftime(stop,start));
return EXIT_SUCCESS;
}
/* Output
How many days from now? 45
New date: Fri Nov 20 12:40:32 1992
Elapsed program time in seconds: 1.000000
*/
/* End of File */
Listing 3 date.h 鈥?涓涓畝鍗曠殑鏃ユ湡緇撴瀯
struct Date
{
int day;
int month;
int year;
};
typedef struct Date Date;
Date* date_interval(const Date *, const Date *);
/* End of File */
Listing 4 date_int.c 鈥?璁$畻涓や釜鏃ユ湡鐨勯棿闅?/em>
/* date_int.c: Compute duration between two dates */
#include "date.h"
#define isleap(y) \
((y)%4 == 0 && (y)%100 != 0 || (y)%400 == 0)
static int Dtab [2][13] =
{
{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
{0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
};
Date *date_interval(const Date *d1, const Date *d2)
{
static Date result;
int months, days, years, prev_month;
/* Compute the interval - assume d1 precedes d2 */
years = d2->year - d1->year;
months = d2->month - d1->month;
days = d2->day - d1->day;
/* Do obvious corrections (days before months!)
*
* This is a loop in case the previous month is
* February, and days < -28.
*/
prev_month = d2->month - 1;
while (days < 0)
{
/* Borrow from the previous month */
if (prev_month == 0)
prev_month = 12;
--months;
days += Dtab[isleap(d2->year)][prev_month--];
}
if (months < 0)
{
/* Borrow from the previous year */
--years;
months += 12;
}
/* Prepare output */
result.month = months;
result.day = days;
result.year = years;
return &result;
}
/* End of File */
Listing 5 tdate.c 鈥?涓句緥璇存槑鏃ユ湡闂撮殧鍑芥暟鐨勪嬌鐢?/em>
/* tdate.c: Test date_interval() */
#include <stdio.h>
#include <stdlib.h>
#include "date.h"
main()
{
Date d1, d2, *result;
int nargs;
/* Read in two dates - assume 1st precedes 2nd */
fputs("Enter a date, MM/DD/YY> ",stderr);
nargs = scanf("%d/%d/%d%*c", &d1.month,
&d1.day, &d1.year);
if (nargs != 3)
return EXIT_FAILURE;
fputs("Enter a later date, MM/DD/YY> ",stderr);
nargs = scanf("%d/%d/%d%*c", &d2.month,
&d2.day, &d2.year);
if (nargs != 3)
return EXIT_FAILURE;
/* Compute interval in years, months, and days */
result = date_interval(&d1, &d2);
printf("years: %d, months: %d, days: %d\n",
result->year, result->month, result->day);
return EXIT_SUCCESS;
}
/* Sample Execution:
Enter a date, MM/DD/YY> 10/1/51
Enter a later date, MM/DD/YY> 10/6/92
years: 41, months: 0, days: 5 */
/* End of File */
Listing 6 ftime.c 鈥?紜畾鏄惁 time1.c姣?/em>time2.c鏇存柊
/* ftime.c: Compare file time stamps */
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <time.h>
main()
{
struct stat fs1, fs2;
if (stat("time1.c",&fs1) == 0 &&
stat("time2.c",&fs2) == 0)
{
double interval =
difftime(fs2.st_mtime,fs1.st_mtime);
printf("time1.c %s newer than time2.c\n",
(interval < 0.0) ? "is" : "is not");
return EXIT_SUCCESS;
}
else
return EXIT_FAILURE;
}
/* Output
time1.c is not newer than time2.c */
/* End of File */
Listing 7 touch.c 鈥?em>閫氳繃瑕嗙洊鏃ф枃浠舵垨鑰呭垱寤轟竴涓柊鐨勬枃浠舵潵鏇存柊鏃墮棿鎴?/em>
/* touch.c: Update a file's time stamp */
#include <stdio.h>
void touch(char *fname)
{
FILE *f = fopen(fname,"r+b");
if (f != NULL)
{
char c = getc(f);
rewind(f);
putc(c,f);
}
else
fopen(fname,"wb");
fclose(f);
}
/* End of File */
]]> string鎿嶄綔 http://m.shnenglu.com/ivenher/articles/1601.html鐖遍キ鐩?/dc:creator>鐖遍キ鐩?/author>Wed, 07 Dec 2005 07:48:00 GMT http://m.shnenglu.com/ivenher/articles/1601.html http://m.shnenglu.com/ivenher/comments/1601.html http://m.shnenglu.com/ivenher/articles/1601.html#Feedback 0 http://m.shnenglu.com/ivenher/comments/commentRss/1601.html http://m.shnenglu.com/ivenher/services/trackbacks/1601.html using namespace std; int main() { string str="hello world"; char * p; int len=0; len = str.size() ; //榪斿洖瀛楃涓查暱搴︼紱 char ch='a'; str += ch ;//(char),鐩稿綋浜巗trcat str.empty(); //鍒ょ┖ int i=0; ch = str[i] ; //涓嬫爣璁塊棶 p = (char *)str.c_str();//榪斿洖char* 綾誨瀷鐨勫瓧絎︿覆銆?BR> printf("%s",p); str.substr() ; //榪欎釜濂藉儚鏈夌殑 return 0; } ]]> C璇█楂樻晥緙栫▼鐨勫洓澶х粷鎷?/title> http://m.shnenglu.com/ivenher/articles/1599.html鐖遍キ鐩?/dc:creator>鐖遍キ鐩?/author>Wed, 07 Dec 2005 06:54:00 GMT http://m.shnenglu.com/ivenher/articles/1599.html http://m.shnenglu.com/ivenher/comments/1599.html http://m.shnenglu.com/ivenher/articles/1599.html#Feedback 4 http://m.shnenglu.com/ivenher/comments/commentRss/1599.html http://m.shnenglu.com/ivenher/services/trackbacks/1599.html 銆銆絎竴鎷涳細浠ョ┖闂存崲鏃墮棿 銆銆璁$畻鏈虹▼搴忎腑鏈澶х殑鐭涚浘鏄┖闂村拰鏃墮棿鐨勭煕鐩撅紝閭d箞錛屼粠榪欎釜瑙掑害鍑哄彂閫嗗悜鎬濈淮鏉ヨ冭檻紼嬪簭鐨勬晥鐜囬棶棰橈紝鎴戜滑灝辨湁浜嗚В鍐抽棶棰樼殑絎?鎷?-浠ョ┖闂存崲鏃墮棿銆傛瘮濡傝瀛楃涓茬殑璧嬪鹼細 銆銆鏂規硶A錛氶氬父鐨勫姙娉?BR>
#define LEN 32 char string1 [LEN]; memset (string1,0,LEN); strcpy (string1,"This is a example!!"錛?
銆銆鏂規硶B錛?
const char string2[LEN] ="This is a example!"; char * cp; cp = string2 ;
銆銆浣跨敤鐨勬椂鍊欏彲浠ョ洿鎺ョ敤鎸囬拡鏉ユ搷浣溿? 銆銆浠庝笂闈㈢殑渚嬪瓙鍙互鐪嬪嚭錛孉鍜孊鐨勬晥鐜囨槸涓嶈兘姣旂殑銆傚湪鍚屾牱鐨勫瓨鍌ㄧ┖闂翠笅錛孊鐩存帴浣跨敤鎸囬拡灝卞彲浠ユ搷浣滀簡錛岃孉闇瑕佽皟鐢ㄤ袱涓瓧絎﹀嚱鏁版墠鑳藉畬鎴愩侭鐨勭己鐐瑰湪浜庣伒媧繪ф病鏈堿濂姐傚湪闇瑕侀綣佹洿鏀逛竴涓瓧絎︿覆鍐呭鐨勬椂鍊欙紝A鍏鋒湁鏇村ソ鐨勭伒媧繪э紱濡傛灉閲囩敤鏂規硶B錛屽垯闇瑕侀瀛樿澶氬瓧絎︿覆錛岃櫧鐒跺崰鐢ㄤ簡澶ч噺鐨勫唴瀛橈紝浣嗘槸鑾峰緱浜嗙▼搴忔墽琛岀殑楂樻晥鐜囥? 銆銆濡傛灉緋葷粺鐨勫疄鏃舵ц姹傚緢楂橈紝鍐呭瓨榪樻湁涓浜涳紝閭f垜鎺ㄨ崘浣犱嬌鐢ㄨ鎷涙暟銆傝鎷涙暟鐨勫彉鎷?-浣跨敤瀹忓嚱鏁拌屼笉鏄嚱鏁般備婦渚嬪涓嬶細 銆銆鏂規硶C錛?
#define bwMCDR2_ADDRESS 4 #define bsMCDR2_ADDRESS 17 int BIT_MASK(int __bf) { 銆return ((1U << (bw ## __bf)) - 1)<< (bs ## __bf); } void SET_BITS(int __dst, int __bf, int __val) { 銆__dst = ((__dst) & ~(BIT_MASK(__bf))) | \ 銆(((__val) << (bs ## __bf)) & (BIT_MASK(__bf)))) } SET_BITS(MCDR2, MCDR2_ADDRESS,RegisterNumber);
銆銆鏂規硶D錛?
#define bwMCDR2_ADDRESS 4 #define bsMCDR2_ADDRESS 17 #define bmMCDR2_ADDRESS BIT_MASK(MCDR2_ADDRESS) #define BIT_MASK(__bf) (((1U << (bw ## __bf)) - 1) << (bs ## __bf)) #define SET_BITS(__dst, __bf, __val) \ ((__dst) = ((__dst) & ~(BIT_MASK(__bf))) | \ (((__val) << (bs ## __bf)) & (BIT_MASK(__bf)))) SET_BITS(MCDR2, MCDR2_ADDRESS, RegisterNumber);
銆銆鍑芥暟鍜屽畯鍑芥暟鐨勫尯鍒氨鍦ㄤ簬錛屽畯鍑芥暟鍗犵敤浜嗗ぇ閲忕殑絀洪棿錛岃屽嚱鏁板崰鐢ㄤ簡鏃墮棿銆傚ぇ瀹惰鐭ラ亾鐨勬槸錛屽嚱鏁拌皟鐢ㄦ槸瑕佷嬌鐢ㄧ郴緇熺殑鏍堟潵淇濆瓨鏁版嵁鐨勶紝濡傛灉緙栬瘧鍣ㄩ噷鏈夋爤媯鏌ラ夐」錛屼竴鑸湪鍑芥暟鐨勫ご浼氬祵鍏ヤ竴浜涙眹緙栬鍙ュ褰撳墠鏍堣繘琛屾鏌ワ紱鍚屾椂錛孋PU涔熻鍦ㄥ嚱鏁拌皟鐢ㄦ椂淇濆瓨鍜屾仮澶嶅綋鍓嶇殑鐜板満錛岃繘琛屽帇鏍堝拰寮規爤鎿嶄綔錛屾墍浠ワ紝鍑芥暟璋冪敤闇瑕佷竴浜汣PU鏃墮棿銆? 銆銆鑰屽畯鍑芥暟涓嶅瓨鍦ㄨ繖涓棶棰樸傚畯鍑芥暟浠呬粎浣滀負棰勫厛鍐欏ソ鐨勪唬鐮佸祵鍏ュ埌褰撳墠紼嬪簭錛屼笉浼氫駭鐢熷嚱鏁拌皟鐢紝鎵浠ヤ粎浠呮槸鍗犵敤浜嗙┖闂達紝鍦ㄩ綣佽皟鐢ㄥ悓涓涓畯鍑芥暟鐨勬椂鍊欙紝璇ョ幇璞″挨鍏剁獊鍑恒? 銆銆D鏂規硶鏄垜鐪嬪埌鐨勬渶濂界殑緗綅鎿嶄綔鍑芥暟錛屾槸ARM鍏徃婧愮爜鐨勪竴閮ㄥ垎錛屽湪鐭煭鐨勪笁琛屽唴瀹炵幇浜嗗緢澶氬姛鑳斤紝鍑犱箮娑電洊浜嗘墍鏈夌殑浣嶆搷浣滃姛鑳姐侰鏂規硶鏄叾鍙樹綋錛屽叾涓粙鍛寵繕闇澶у浠旂粏浣撲細銆?絎簩鎷涳細鏁板鏂規硶瑙e喅闂 銆銆鐜板湪鎴戜滑婕旂粠楂樻晥C璇█緙栧啓鐨勭浜屾嫑--閲囩敤鏁板鏂規硶鏉ヨВ鍐抽棶棰樸傛暟瀛︽槸璁$畻鏈轟箣姣嶏紝娌℃湁鏁板鐨勪緷鎹拰鍩虹錛屽氨娌℃湁璁$畻鏈虹殑鍙戝睍錛屾墍浠ュ湪緙栧啓紼嬪簭鐨勬椂鍊欙紝閲囩敤涓浜涙暟瀛︽柟娉曚細瀵圭▼搴忕殑鎵ц鏁堢巼鏈夋暟閲忕駭鐨勬彁楂樸備婦渚嬪涓嬶紝姹?1~100鐨勫拰銆?BR> 銆銆鏂規硶E錛?BR>
int I , j; for (I = 1 ;I<=100; I ++錛?BR>{ 銆j += I; }
銆銆鏂規硶F
int I; I = (100 * (1+100)) / 2
銆銆榪欎釜渚嬪瓙鏄垜鍗拌薄鏈娣辯殑涓涓暟瀛︾敤渚嬶紝鏄垜鐨勮綆楁満鍚挋鑰佸笀鑰冩垜鐨勩傚綋鏃舵垜鍙湁灝忓涓夊勾綰э紝鍙儨鎴戝綋鏃朵笉鐭ラ亾鐢ㄥ叕寮?N脳錛圢+1錛? 2 鏉ヨВ鍐寵繖涓棶棰樸傛柟娉旹寰幆浜?00嬈℃墠瑙e喅闂錛屼篃灝辨槸璇存渶灝戠敤浜?00涓祴鍊鹼紝100涓垽鏂紝200涓姞娉曪紙I鍜宩錛夛紱鑰屾柟娉旻浠呬粎鐢ㄤ簡1涓姞娉曪紝1嬈′箻娉曪紝1嬈¢櫎娉曘傛晥鏋滆嚜鐒朵笉璦鑰屽柣銆傛墍浠ワ紝鐜板湪鎴戝湪緙栫▼搴忕殑鏃跺欙紝鏇村鐨勬槸鍔ㄨ剳絳嬫壘瑙勫緥錛屾渶澶ч檺搴﹀湴鍙戞尌鏁板鐨勫▉鍔涙潵鎻愰珮紼嬪簭榪愯鐨勬晥鐜囥? 銆銆絎笁鎷涳細浣跨敤浣嶆搷浣? 銆銆瀹炵幇楂樻晥鐨凜璇█緙栧啓鐨勭涓夋嫑鈥斺斾嬌鐢ㄤ綅鎿嶄綔銆傚噺灝戦櫎娉曞拰鍙栨ā鐨勮繍綆椼傚湪璁$畻鏈虹▼搴忎腑鏁版嵁鐨勪綅鏄彲浠ユ搷浣滅殑鏈灝忔暟鎹崟浣嶏紝鐞嗚涓婂彲浠ョ敤"浣嶈繍綆?鏉ュ畬鎴愭墍鏈夌殑榪愮畻鍜屾搷浣溿備竴鑸殑浣嶆搷浣滄槸鐢ㄦ潵鎺у埗紜歡鐨勶紝鎴栬呭仛鏁版嵁鍙樻崲浣跨敤錛屼絾鏄紝鐏墊椿鐨勪綅鎿嶄綔鍙互鏈夋晥鍦版彁楂樼▼搴忚繍琛岀殑鏁堢巼銆備婦渚嬪涓嬶細 銆銆鏂規硶G
int I,J; I = 257 /8; J = 456 % 32;
銆銆鏂規硶H
int I,J; I = 257 >>3; J = 456 - (456 >> 4 << 4);
銆銆鍦ㄥ瓧闈笂濂藉儚H姣擥楹葷儲浜嗗ソ澶氾紝浣嗘槸錛屼粩緇嗘煡鐪嬩駭鐢熺殑姹囩紪浠g爜灝變細鏄庣櫧錛屾柟娉旼璋冪敤浜嗗熀鏈殑鍙栨ā鍑芥暟鍜岄櫎娉曞嚱鏁幫紝鏃㈡湁鍑芥暟璋冪敤錛岃繕鏈夊緢澶氭眹緙栦唬鐮佸拰瀵勫瓨鍣ㄥ弬涓庤繍綆楋紱鑰屾柟娉旽鍒欎粎浠呮槸鍑犲彞鐩稿叧鐨勬眹緙栵紝浠g爜鏇寸畝媧侊紝鏁堢巼鏇撮珮銆傚綋鐒訛紝鐢變簬緙栬瘧鍣ㄧ殑涓嶅悓錛屽彲鑳芥晥鐜囩殑宸窛涓嶅ぇ錛屼絾鏄紝浠ユ垜鐩墠閬囧埌鐨凪S C ,ARM C 鏉ョ湅錛屾晥鐜囩殑宸窛榪樻槸涓嶅皬銆傜浉鍏蟲眹緙栦唬鐮佸氨涓嶅湪榪欓噷鍒椾婦浜嗐? 銆銆榪愮敤榪欐嫑闇瑕佹敞鎰忕殑鏄紝鍥犱負CPU鐨勪笉鍚岃屼駭鐢熺殑闂銆傛瘮濡傝錛屽湪PC涓婄敤榪欐嫑緙栧啓鐨勭▼搴忥紝騫跺湪PC涓婅皟璇曢氳繃錛屽湪縐繪鍒頒竴涓?6浣嶆満騫沖彴涓婄殑鏃跺欙紝鍙兘浼氫駭鐢熶唬鐮侀殣鎮c傛墍浠ュ彧鏈夊湪涓瀹氭妧鏈繘闃剁殑鍩虹涓嬫墠鍙互浣跨敤榪欐嫑銆? 銆銆絎洓鎷涳細姹囩紪宓屽叆 銆銆楂樻晥C璇█緙栫▼鐨勫繀鏉鎶錛岀鍥涙嫑鈥斺斿祵鍏ユ眹緙栥?鍦ㄧ啛鎮夋眹緙栬璦鐨勪漢鐪奸噷錛孋璇█緙栧啓鐨勭▼搴忛兘鏄瀮鍦?銆傝繖縐嶈娉曡櫧鐒跺亸嬋浜嗕竴浜涳紝浣嗘槸鍗存湁瀹冪殑閬撶悊銆傛眹緙栬璦鏄晥鐜囨渶楂樼殑璁$畻鏈鴻璦錛屼絾鏄紝涓嶅彲鑳介潬鐫瀹冩潵鍐欎竴涓搷浣滅郴緇熷惂?鎵浠ワ紝涓轟簡鑾峰緱紼嬪簭鐨勯珮鏁堢巼錛屾垜浠彧濂介噰鐢ㄥ彉閫氱殑鏂規硶--宓屽叆姹囩紪錛屾販鍚堢紪紼嬨備婦渚嬪涓嬶紝灝嗘暟緇勪竴璧嬪肩粰鏁扮粍浜?瑕佹眰姣忎竴瀛楄妭閮界浉絎︺?
char string1[1024],string2[1024];
銆銆鏂規硶I
int I; for (I =0 ;I<1024;I++) 銆*(string2 + I) = *(string1 + I)
銆銆鏂規硶J
#ifdef _PC_ int I; for (I =0 ;I<1024;I++) *(string2 + I) = *(string1 + I); #else #ifdef _ARM_ __asm { 銆MOV R0,string1 銆MOV R1,string2 銆MOV R2,#0 loop: 銆LDMIA R0!, [R3-R11] 銆STMIA R1!, [R3-R11] 銆ADD R2,R2,#8 銆CMP R2, #400 銆BNE loop } #endif
銆銆鏂規硶I鏄渶甯歌鐨勬柟娉曪紝浣跨敤浜?024嬈″驚鐜紱鏂規硶J鍒欐牴鎹鉤鍙頒笉鍚屽仛浜嗗尯鍒嗭紝鍦ˋRM騫沖彴涓嬶紝鐢ㄥ祵鍏ユ眹緙栦粎鐢?28嬈″驚鐜氨瀹屾垚浜嗗悓鏍風殑鎿嶄綔銆傝繖閲屾湁鏈嬪弸浼氳錛屼負浠涔堜笉鐢ㄦ爣鍑嗙殑鍐呭瓨鎷瘋礉鍑芥暟鍛?榪欐槸鍥犱負鍦ㄦ簮鏁版嵁閲屽彲鑳藉惈鏈夋暟鎹負0鐨勫瓧鑺傦紝榪欐牱鐨勮瘽錛屾爣鍑嗗簱鍑芥暟浼氭彁鍓嶇粨鏉熻屼笉浼氬畬鎴愭垜浠姹傜殑鎿嶄綔銆傝繖涓緥紼嬪吀鍨嬪簲鐢ㄤ簬LCD鏁版嵁鐨勬嫹璐濊繃紼嬨傛牴鎹笉鍚岀殑CPU錛岀啛緇冧嬌鐢ㄧ浉搴旂殑宓屽叆姹囩紪錛屽彲浠ュぇ澶ф彁楂樼▼搴忔墽琛岀殑鏁堢巼銆? 銆銆铏界劧鏄繀鏉鎶錛屼絾鏄鏋滆交鏄撲嬌鐢ㄤ細浠樺嚭鎯ㄩ噸鐨勪唬浠楓傝繖鏄洜涓猴紝浣跨敤浜嗗祵鍏ユ眹緙栵紝渚塊檺鍒朵簡紼嬪簭鐨勫彲縐繪鎬э紝浣跨▼搴忓湪涓嶅悓騫沖彴縐繪鐨勮繃紼嬩腑錛屽崸铏庤棌榫欙紝闄╄薄鐜敓錛佸悓鏃惰鎷涙暟涔熶笌鐜頒唬杞歡宸ョ▼鐨勬濇兂鐩歌繚鑳岋紝鍙湁鍦ㄨ揩涓嶅緱宸茬殑鎯呭喌涓嬫墠鍙互閲囩敤銆? ]]> C璇█緙栫▼鎶宸ф眹钀?/title> http://m.shnenglu.com/ivenher/articles/1499.html鐖遍キ鐩?/dc:creator>鐖遍キ鐩?/author>Fri, 02 Dec 2005 08:08:00 GMT http://m.shnenglu.com/ivenher/articles/1499.html http://m.shnenglu.com/ivenher/comments/1499.html http://m.shnenglu.com/ivenher/articles/1499.html#Feedback 0 http://m.shnenglu.com/ivenher/comments/commentRss/1499.html http://m.shnenglu.com/ivenher/services/trackbacks/1499.html 鑾峰彇鏈哄櫒鏃ユ湡 灝嗘誕鐐規暟杞寲涓哄瓧絎︿覆 娓呴櫎灞忓箷 鏄劇ず鏃墮棿 鎵撳嵃涓涓煩褰?BR>鐮嶆帀瀛楃涓蹭腑鎵鏈夌┖鏍?BR>鍙栧瓙瀛楃涓?BR>浠庢枃浠朵腑璇誨彇瀛楃 瀛楃涓插乏闈犻綈 鍙栧乏瀛楃涓?BR>鍚戞枃浠跺啓鏁版嵁 鍙栧彸瀛楃涓?BR>鎵撳紑鎴栧叧闂厜鏍?BR>鍠囧彮鍙戝0 鏃墮棿寤惰繜 姝g偣鎶ユ椂 鍐欐暣鏁頒簬鏂囦歡涓?BR>浠庢枃浠朵腑璇誨彇鏁存暟 鎶ヨ 瀛楃涓插彸闈犻綈 瀛楃涓插眳涓?BR>鍒犻櫎瀛愬瓧絎︿覆 鏌ユ壘鎸囧畾瀛楃涓?BR>浜х敓絀烘牸 浜х敓瀛楃涓?BR>鐮嶆帀瀛楃涓插乏杈圭┖鏍?BR>鐮嶆帀瀛楃涓插彸杈圭┖鏍?BR>鏄劇ず涓涓瓧絎︿覆 瀹氫箟灞忓箷棰滆壊 鏄劇ず鎻愮ず紿楀彛鏄劇ず璀﹀憡紿楀彛 寰楀埌鏂囦歡闀垮害 紿楀彛婊氬睆 鎵弿閿洏 鎻掑叆瀛楃涓? 媯嫻嬬鐩樻槸鍚﹀噯澶囧氨緇?BR>媯嫻嬬鐩樻槸鍚﹀啓淇濇姢 淇敼鏂囦歡鐨勬煇涓琛?BR>鎴愭壒鎷瘋礉鏂囦歡 鎷瘋礉涓涓枃浠?BR>寤虹珛鐩綍 寰楀埌鐩綍 寰楀埌鏂囦歡鍚?BR>浠繪剰涓や釜姝f暣鏁扮浉鍔?<80浣? 浠繪剰涓や釜姝f暣鏁扮浉涔?BR> 娉ㄦ剰錛氳鍑芥暟闆嗙渷鐣ヤ簡涓嶅皯TC鏍囧噯澶存枃浠訛紝璇昏呬嬌鐢ㄦ椂瑕佽嚜琛屾坊鍔犮傝屼笖鐢變簬璇ュ嚱鏁伴泦鍐呴儴鍑芥暟闂存湁鐨勬湁璋冪敤鍏崇郴錛岃鑰呮媶鍗告椂瑕佽皚鎱庛?BR> /*緙栫▼鎶宸ц崯钀?/ /*浠庨敭鐩樹腑璇誨彇瀛楃 鍔熻兘錛氭寜涓嬫櫘閫氶敭鏃訛紝榪斿洖鍏禔SCII鐮?鎵弿鐮丆ODE=0*/ int INKEY(int *code) { int m; while(!bioskey(1))/*鍙姞鍏ユ棤鎸夐敭鏃朵唬鐮?/; *code=bioskey(0); m=*code*255; if(!m) m=*code>>8; *code=*code&255; return m; } /*鑾峰彇鏈哄櫒鏃ユ湡*/ int DATE(char *s,char type) { char dat[30]; int num; struct tm *tblock; time_t t; t=time(NULL); tblock=localtime(&t); strcpy(dt,asctime(tblock)); strcpy(s,""); switch(type) { case 'N': num=(*tblock).tm_year+1900; itoa(num,s,10); break; case 'Y': num=(*tblock).tm_mon+1; itoa(num,s,10); break; case 'R': num=(*tblock).tm_mday; itoa(num,s,10); break; case 'S': strcpy(dt,asctime(tblock)); MID(s,dt,12,8); break; } } return num; } /*灝嗘誕鐐規暟杞寲涓哄瓧絎︿覆*/ /* 鍙傛暟璇存槑 data:闇杞崲鐨勬誕鐐規暟錛泂:杈撳嚭瀛楃涓詫紱len:杞崲鍚庣殑闀垮害*/ void f_to_s(double data,char *s,int len) { int dec,sign,i; char *s1,s2[100],s3[100]; s1=0; s2[0]=0; s3[0]=0; s1=fcvt(data,len,&dec,&sign); if (!sign&&data>=1) { MID(s2,s1,dec+1,-1); MID(s3,s1,1,dec); strcpy(s,"+"); strcat(s,s3); strcat(s,"."); strcat(s,s2); } if (sign&&fabs(data)>=1) { MID(s2,s1,dec+1,-1); strcpy(s,"-"); MID(s3,s1,1,dec); strcat(s,s3); strcat(s,"."); strcat(s,s2); } if (!sign&&dec==0) { strcpy(s,"+0."); strcat(s,s1); } if (sign&&dec==0) { strcpy(s,"-0."); strcat(s,s1); } if (!sign&&dec<0) { strcpy(s,"+0."); for(i=1;i<=fabs(dec);i++) strcat(s,"0"); strcat(s,s1); } if (sign&&dec<0) { strcpy(s,"-0."); for(i=1;i<=fabs(dec);i++) strcat(s,"0"); strcat(s,s1); } if (strlen(s)>len) s[len]=0; } /*娓呴櫎灞忓箷*/ void CLSXY(int color,int x,int y,int xl,int yl) { int x1,y1; union REGS r; if(x<1||y<1) return; y--; x--; y1=y+yl-1; x1=x+xl-1; if (y1>25||x1>80) return; r.h.ah=6; /*瀛愬姛鑳藉彿*/ r.h.al=0; /*婊氬姩琛屾暟*/ r.h.ch=y; r.h.cl=x; r.h.dh=y1; r.h.dl=x1; r.h.bh=color*16; int86(16,&r,&r); } /*鏄劇ず鏃墮棿*/ void display_time(int color,int back_color,int y,int x) { static char oldtime[9]=""; char newtime[9]; if(y<1||x<1) return; settextstyle(1,0,1); DATA(newtime,'S'); back_color=7; if(strcmp(newtime,oldtime)) { setfillstyle(1,back_color); setcolor(color); bar(535,458,635,475); outtextxy(x,y,newtime); strcpy(oldtime,newtime); } } /*鎵撳嵃涓涓煩褰?/ void PRINT_KJ(int x,int y,int wide,int high) { int i; for(i=x;i<x+wide;i+=2) { gotoxy(i,y); cprintf("顔?); } gotoxy(x,y+high); cprintf("顒?); gotoxy(x+wide,y+high); cprintf("顒?); gotoxy(x,y); cprintf("顔?); gotoxy(x+wide,y); cprintf("顔?); for(i=x+2;i<x+wide;i+=2) { gotoxy(i,y+high); cprintf("顒?); } for(i=y+1;i<y+high;i++) { gotoxy(x,i); cprintf("顔?); } for(i=y+1;i<y+high;i++) { gotoxy(x+wide,i); cprintf("顔?); } } /*鐮嶆帀瀛楃涓蹭腑鎵鏈夌┖鏍?/ void CUT_ALL_SPC(char *s) { int i,n; char d[10000]; n=0; for(i=0;i<strlen(s);i++) if(s!=32) { d[n]=s; n++; } d[n]=0; strcpy(s,d); } /*鍙栧瓙瀛楃涓?/ void MID(char *s,char *t,int n,int m) { int i,j,p; if(n<1) n=1; i=strlen(s); if(i<n) m=0; if(m<0) m=i; else m=n+m-1; if(m>i) m=i; p=m-n+1; if(p<0) p=0; for(i=n-1,j=0;i<m;i++,j++) t[j]=s; t[p]=0; } /*浠庢枃浠朵腑璇誨彇瀛楃*/ int READ_STR(char *s,FILE *fp) { int i=0; if(!fp) return 0; if(fgets(s,10000,fp)) i=1; s[strlen(s)-1]=0; return i; } /*瀛楃涓插乏闈犻綈*/ void MOVE_LEFT(char *d,char *s,int n) { int i,l; l=strlen(s); if(n>l) n=l; for(i=0;i<l;i++) *d++=*s++; *d=0; } /*鍙栧乏瀛楃涓?/ void LEFT(char *d,char *s,int n) { int i,l; i=0; l=strlen(s); if(n>l) n=l; for(i=0;i<n;i++) d=s; d[n]=0; } /*鍚戞枃浠跺啓鏁版嵁*/ void WRITE_STR(char *s,FILE *fp) { char c=10; if(!fp) return; fputs(s,fp); fputc(c,fp); } /*鍙栧彸瀛楃涓?/ void RIGHT(char *dest,char *source,int num) { int i,j; if (num<1) num=0; num=strlen(source)-num; if (num<0) num=0; for(i=0,j=num;j<=strlen(source);i++,j++) dest=source[j]; } /*鎵撳紑鎴栧叧闂厜鏍?/ void CURSOR(int on2off) { union REGS r; if (on2off!=OFF) on2off=10; r.h.ah=1; r.h.ch=3; r.h.cl=on2off; int86(16,&r,&r); } /*鍠囧彮鍙戝0*/ void SOUND(int frequency,int time) { int i; i=time*50; if (i>30000) i=30000; if (i<50) i=50; sound(frequency); MYDELAY(i); nosound(); } /*鏃墮棿寤惰繜*/ void MYDELAY(long t) { time_t OldTime; long t0; t0=t/55; if (t0<1) t0=1; OldTime=clock(); while(clock()-OldTime<t0); } /*姝g偣鎶ユ椂*/ void REPORT_CLOCK(void) { int i; for(i=0;i<5;i++); { SOUND(500,10); MYDELAY(1000); } SOUND(800,10); } /*鍐欐暣鏁頒簬鏂囦歡涓?/ void WRITE_INT(int num,FILE *p) { char s[20],a=10; if (!p) return; itoa(num,s,10); fputs(s,p); fputc(a,p); } /*浠庢枃浠朵腑璇誨彇鏁存暟*/ int READ_INT(int *num,FILE *p) { int i; char s[30]=""; if (!p) return 0; if (fgets(s,10000,p)) { i=-1; s[strlen(s)-1]=0; *num=atoi(s); } else i=0; return i; } /*鎶ヨ */ void WARN(void) { SOUND(300,1); SOUND(100,1); } /*瀛楃涓插彸闈犻綈*/ void MOVE_RIGHT(char *s,int wide) { int i,l,n; l=strlen(s); n=wide-l; if (n>0) { for(i=l;i>-1;i--) s[i+n]=s; for(i=0;i<n;i++) s=32; } } /*瀛楃涓插眳涓?/ void MOVE_MIDDLE(char *s,int wide) { int i,l,n; l=strlen(s); if (wide>l) { wide=wide-1; n=wide/2; wide=wide-n; for(i=l;i>-1;i--) s[i+n]=s; for(i=0;i<n;i++) s=32; for(i=0;i<wide;i++) s[l+n+i]=32; s[l+n+i]=0; } } /*鍒犻櫎瀛愬瓧絎︿覆*/ void Delete_SubString(char *source,int start,int num) { int i,l; l=strlen(source); if (num>l-start+1||num==-1) num=l-start+1; if (start<1||start>1) return; for(i=start;i<l-num+2;i++) source[i-1]=source[i+num-1]; } /*鏌ユ壘鎸囧畾瀛楃涓?/ int INSTR(int n,char *source,char *dest) { int i,j,k1,k2,p; int start=0; if (n==0) n=1; k1=strlen(source); k2=strlen(dest); if (n<0) { char s[100]; n=-n; MID(s,source,n,k2); if (strcmp(s,dest)) return 0; return n; } if (k1-n+1<k2) return start; for(i=n-1;i<k1;i++) { p=0; for(j=0;j<k2;j++) if (source[i+j]!=dest[j]) break; else p++; if (p==k2) { start=i+1; break; } } return start; } /*浜х敓絀烘牸*/ void SPACE(char *s,int n) { int i; if (n<0) n=0; for(i=0;i<n;i++) *s++=32; *s=0; } /*浜х敓瀛楃涓?/ void STRING(int n,char *s1,char *s2) { int i; if (n<0) n=0; s1[0]=0; for(i=1;i<=n;i++) strcat(s1,s2); } /*鐮嶆帀瀛楃涓插乏杈圭┖鏍?/ void CUT_LEFT_SPACE(char *s) { int i,j,k=0; i=strlen(s)+1; for(j=0;j<i;j++) if (s[j]!=' ') break; for(k=0;j<i;k++,j++) s[k]=s[j]; }
/*鐮嶆帀瀛楃涓插彸杈圭┖鏍?/ void CUT_RIGHT_SPACE(char *s) { int i,j; i=strlen(s)-1; for(j=i;j>-1;j--) if (s[j]!=' ') break; s[j+1]=0; } /*鏄劇ず涓涓瓧絎︿覆*/ void DISPLAY(char *s) { union REGS regs; int color,x,y; x=wherex(); y=wherey(); color=16*bjys+qjys; while(*s) { if(x>80) break; regs.h.ah=9; regs.h.al=*s; regs.h.bh=0; regs.h.bl=color; regs.x.cx=1; /*鏄劇ず鐨勬鏁?涓嶆敼鍙樺厜鏍囦綅緗?/ int86(16,®s,®s); x++; if(x>80) { x=1; y++; if(y>25) y=25; } gotoxy(x,y); s++; } } /*瀹氫箟灞忓箷棰滆壊*/ void COLOR(int ForeColor,int BackColor) { if(ForeColor<0||ForeColor>15) return; if(BackColor<0||BackColor>15) return; qjys=ForeColor; bjys=BackColor; } /*鏄劇ず鎻愮ず紿楀彛*/ void quit_YesNo(char *s1,char *s2) { char buffer[2000],jx; gettext(30,8,76,16,buffer); textbackground(3); CLSXY(8,32,9,30,6); CLSXY(4,30,8,30,6); COLOR(15,4); gotoxy(35,10); DISPLAY(s1); gotoxy(35,12); DISPLAY(s2); gotoxy(35+strlen(s2)+1,12); jx=getch(); puttext(30,8,76,16,buffer); if (jx=='n'||jx=='N') return; textbackground(0); textcolor(15); clrscr(); CURSOR(ON); exit(0); } /*鏄劇ず璀﹀憡紿楀彛*/ void warn_message(char *s1,char *s2) { char buffer[2000]; gettext(30,8,76,16,buffer); CLSXY(8,32,9,30,6); CLSXY(4,30,8,30,6); COLOR(15,4); gotoxy(35,10); DISPLAY(s1); gotoxy(35,12); DISPLAY(s2); gotoxy(40,13); DISPLAY("鎸変換鎰忛敭緇х畫..."); getch(); puttext(30,8,76,16,buffer); } /*寰楀埌鏂囦歡闀垮害*/ long GetFileLength(char *file) { FILE *fp; int i; if ((fp=fopen(file,"rb"))==NULL) { clrscr(); printf("Can't open the file %s .",file); return 0; } i=0; while(!feof(fp)) { i++; fgetc(fp); } fclose(fp); return (i-1); } /*紿楀彛婊氬睆*/ void WINDOW_ROLL(int y1,int x1,int yl,int xl,int direct) { union REGS regs; int x2,y2; x1--; y1--; x2=x1+xl-1; y2=y1+yl-1; regs.h.ah=5+direct; /*ah=06h 鍚戜笂婊氬姩褰撳墠欏?/ /*ah=07h 鍚戜笅銆傘傘?*/ regs.h.al=1; regs.h.bh=16*pmbj+pmqj; regs.h.ch=y1; /*宸︿笂瑙掕*/ regs.h.cl=x1; /*鍒?/ regs.h.dh=y2; /*鍙充笅瑙掕*/ regs.h.dl=x2; /*鍒?/ int86(16,®s,®s); } /*鎵弿閿洏*/ int scan_keyboard(int *m) { union inkey { unsigned char ch[2]; int ii; }cc; while(!bioskey(1)) {;} cc.ii=bioskey(0); *m=cc.ch[1]; return cc.ch[0]; } /*鎻掑叆瀛楃涓?/ void INSERT_STRING(char *ds,char *ss,int n) { char s[100]; MID(ds,s,n,-1); ds[n-1]=0; strcat(ds,ss); strcat(ds,s); } void STR_ADD_CHAR(char *s,char ch) { char s1[2]; s1[0]=ch; s1[1]=0; strcat(s,s1); } /*媯嫻嬬鐩樻槸鍚﹀噯澶囧氨緇?/ int CheckDiskReading(int n) { int result; char buffer[512]; result=biosdisk(4,n,0,0,0,1,buffer); result=result&0x02; if (result!=0x02) return 0; return 1; } /*媯嫻嬬鐩樻槸鍚﹀啓淇濇姢*/ int CheckDiskWriteProf(void) { int result; char buffer[512]; result=biosdisk(5,0,0,0,0,1,buffer); if (result==0x03) return 0; return 1; } /*淇敼鏂囦歡鐨勬煇涓琛?/ int ModifyFileLine(char *filename,char *s,int n) { char data[20][80]; int i; FILE *fp; if ((fp=fopen(filename,"r"))==NULL) return 0; i=0; while(READ_STR(data,fp)) i++; fclose(fp); fp=fopen(filename,"w"); strcpy(data[n-1],s); n=i-1; for(i=0;i<=n;i++) WRITE_STR(data,fp); fclose(fp); return 1; } /*鎴愭壒鎷瘋礉鏂囦歡*/ int CopyFile(char *sfile,char *dfile,int f2d,int barlong,int height,int x,int y) { int Copyfile(char *sf,char *df); int MakeNdir(char *Dir); char filename[200][13],d[40],s[40],s1[40]; struct ffblk ffblk; int done,i,j,l,len; i=0; done=findfirst(sfile,&ffblk,0); if (!done) strcpy(filename,ffblk.ff_name); while(!done) { done=findnext(&ffblk); if (!done) { i++; strcpy(filename,ffblk.ff_name); } } if (f2d) { Copyfile(sfile,dfile); return 1; } strcpy(s,sfile); l=strlen(sfile); for(j=l-1;j>=0;j--) if (s[j]=='\\') { s[j+1]=0; break; } /*鎷瘋礉涓涓枃浠?/ int Copyfile(char *sf,char *df) { FILE *in,*out; char ch; in=0; out=0; if ((in=fopen(sf,"rb"))==NULL) exit(0); if ((out=fopen(df,"wb"))==NULL) exit(0); while(!feof(in)) { ch=fgetc(in); if (ferror(in)) return 0; fputc(ch,out); if (ferror(out)) return 0; } fclose(in); fclose(out); return 1; } /*寤虹珛鐩綍*/ int MakeNdir(char *Dir) { int i,l,j; char s[10][40]; j=0; l=strlen(Dir); for(i=0;i<l;i++) if (Dir=='\\') { LEFT(s[j],Dir,i); j++; } strcpy(s[j],Dir); for(i=0;i<=j;i++) if (access(s,0)) mkdir(s); return 1; } /*寰楀埌鐩綍*/ int GetDir(char *dirF,char dataK[][14]) { struct ffblk ffblk; int done; int i; i=0; done=findfirst(dirF,&ffblk,FA_DIREC); while(!done) { if (ffblk.ff_attrib==16||ffblk.ff_attrib==17) { strcpy(dataK,ffblk.ff_name); strcat(dataK,"\\"); i++; } done=findnext(&ffblk); } return i; } /*寰楀埌鏂囦歡鍚?/ int GetFile(char *dirF,char dataK[][14]) { struct ffblk ffblk; int done; int i; i=0; done=findfirst(dirF,&ffblk,0); while(!done) { strcpy(dataK,ffblk.ff_name); done=findnext(&ffblk); i++; } return i; } /*浠繪剰涓や釜姝f暣鏁扮浉鍔?<80浣?*/ /*鍙傛暟璇存槑:numA,numB鍒嗗埆涓哄姞鏁板拰琚姞鏁?result瀛樻斁鐩稿姞鍚庣殑緇撴灉*/ void add(char *numA,char *numB,char *result) { int i,j,a,b,c,jw,Alen,Blen; /*瀹氫箟鍙橀噺*/ char num[81]; char numC[81]; /*瀹氫箟鏂扮殑瀛椾覆,闀垮害涓巒umA鐩稿悓*/ char ch; char s[1]; num[0]=0; numC[0]=0; if (strlen(numA)>=80) return; if (strlen(numB)>=80) return; for(i=0;i<strlen(numA);i++) /*鍒ゆ柇杈撳叆鏁版槸鍚﹂潪娉?/ if (!isdigit(numA)) return; /*濡傛灉闈炴硶榪斿洖緇撴灉涓虹┖*/ for(i=0;i<strlen(numB);i++) if (!isdigit(numB)) return; if (strlen(numA)<strlen(numB)) /*灝嗚緝澶х殑鏁版斁鍏umA涓?/ { strcpy(num,numA); strcpy(numA,numB); strcpy(numB,num); num[0]=0; } Alen=strlen(numA); Blen=strlen(numB); strcpy(numC,numB); for(i=0;i<Alen;i++) numC[Alen-i-1]=numC[Blen-i-1]; for(i=0;i<Alen-Blen;i++) /*鍦╪umC涓彃鍏涓?,浣垮叾闀垮害絳変簬numA*/ numC='0'; jw=0; /*榪涗綅*/ for(i=0;i<Alen;i++) { s[0]=numA[Alen-i-1]; s[1]=0; a=atoi(s); s[0]=numC[Alen-i-1]; s[1]=0; b=atoi(s); c=a+b+jw; if (c>=10) { jw=1; c=c-10; } else jw=0; itoa(c,s,10); num=s[0]; } if (jw==1) {num='1';num[i+1]=0;} else num=0; j=strlen(num); for(i=0;i<j/2;i++) { ch=num; num=num[j-i-1]; /*灝唍um鍙嶈漿*/ num[j-i-1]=ch; } strcpy(result,num); return; /*榪斿洖鐩稿姞緇撴灉*/ } /*浠繪剰涓や釜姝f暣鏁扮浉涔?/ /*鍙傛暟璇存槑:numA,numB 鍒嗗埆涓轟箻鏁板拰琚箻鏁?resultm瀛樻斁縐?/ void mult(char *numA,char *numB,char *resultm) { int i,j,k,l,m,a,b,c,jw,Alen,Blen,f; /*瀹氫箟鍙橀噺*/ char resulta[82]; char num[161]; char ch; char s[1]; num[0]=0; f=0; if (strlen(numA)>=80) return; if (strlen(numB)>=80) return; for(i=0;i<strlen(numA);i++) /*鍒ゆ柇杈撳叆鏁版槸鍚﹂潪娉?/ if (!isdigit(numA)) return; /*濡傛灉闈炴硶榪斿洖緇撴灉涓虹┖*/ for(i=0;i<strlen(numB);i++) if (!isdigit(numB)) return; if (strlen(numA)<strlen(numB)) /*灝嗚緝澶х殑鏁版斁鍏umA涓?/ { strcpy(num,numA); strcpy(numA,numB); strcpy(numB,num); num[0]=0; } Alen=strlen(numA); Blen=strlen(numB); strcpy(resultm,"0"); for(i=0;i<Blen;i++) { s[0]=numB[Blen-i-1]; s[1]=0; c=atoi(s); strcpy(resulta,numA); if (c==0) strcpy(resulta,"0"); for(j=0;j<c-1;j++) {add(resulta,numA,resulta);} l=strlen(resulta); for(k=0;k<i;k++) { resulta[l+k]='0'; resulta[l+k+1]=0; } add(resultm,resulta,resultm); } }
]]> C璇█甯哥敤鏂囦歡澶勭悊鍑芥暟 http://m.shnenglu.com/ivenher/articles/1493.html鐖遍キ鐩?/dc:creator>鐖遍キ鐩?/author>Fri, 02 Dec 2005 06:27:00 GMT http://m.shnenglu.com/ivenher/articles/1493.html http://m.shnenglu.com/ivenher/comments/1493.html http://m.shnenglu.com/ivenher/articles/1493.html#Feedback 0 http://m.shnenglu.com/ivenher/comments/commentRss/1493.html http://m.shnenglu.com/ivenher/services/trackbacks/1493.html 鍦ㄥ疄闄呯殑緙栫▼涓紝緇忓父闇瑕佽繘琛屾枃浠惰鍐欑殑鎿嶄綔銆備笅闈㈡槸絎旇呭湪瀛︿範涓褰曠殑涓浜涘父鏈夋枃浠跺鐞嗗嚱鏁般備竴銆佹枃浠剁殑鎵撳紑涓庡叧闂?BR>1銆乫open 璋冪敤鏂瑰紡錛?BR> FILE *fp; fp=fopen(鏂囦歡鍚?浣跨敤鏂囦歡鏂瑰紡); 璇存槑錛?BR> 錛?錛夈佷嬌鐢ㄦ枃浠舵柟寮忎富瑕佹湁:鍙(r)銆佸彧鍐?w)銆佽拷鍔?a)錛岃繕鏈夐厤鍚?+"浣跨敤鐨勬柟寮忥紝濡俽+銆亀+銆乤+; 錛?錛夈侀粯璁ゆ墦寮鐨勬枃浠朵負鏂囨湰鏂囦歡錛岀敤't'琛ㄧず錛屽彲浠ョ渷鐣ャ傚鏋滄墦寮浜岃繘鍒剁殑鏂囦歡錛屽垯浣跨敤'b'銆備緥濡傦細r銆乺t銆乺b絳夈?BR> 錛?錛夈佸鏋滀笉鑳藉疄鐜版墦寮鐨勪換鍔★紝鍒欏嚱鏁拌繑鍥濶ULL鍊箋?BR>2銆乫close 璋冪敤鏂瑰紡錛?BR> FILE *fp; fclose(fp); 璇存槑錛?BR> 錛?錛夈佹墦寮鏂囦歡鍚庯紝蹇呴』瑕佸吇鎴愬叧闂枃浠剁殑濂戒範鎯?BR> 錛?錛夈佸鏋滃叧闂枃浠跺嚭閿欙紝鍑芥暟榪斿洖闈為浂鍊鹼紝鍚﹀垯榪斿洖0.鍙互鐢╢error鍑芥暟媯鏌ユ槸鍚﹀嚭閿欍?BR> 浜屻佹枃浠剁殑璇誨啓 1銆乫putc 璋冪敤鏂瑰紡錛?BR> FILE *fp; char c; fputc(c,fp); 璇存槑錛?BR> 錛?錛夈乫putc鍚戞枃浠跺啓鍏ヤ竴涓瓧絎︺?nbsp; 錛?錛夈佽緭鍑烘垚鍔熷垯榪斿洖鍊煎氨鏄緭鍑虹殑瀛楃錛屽鏋滃け璐ュ垯榪斿洖涓涓狤OF銆?BR>2銆乫getc 璋冪敤鏂瑰紡錛?BR> FILE *fp; char c; c=fgetc(fp); 璇存槑錛?BR> 錛?錛夈乫getc鍚戞枃浠惰鍙栦竴涓瓧絎︺?BR> 錛?錛夈佸嚱鏁拌繑鍥炶鍙栫殑瀛楃錛屽鏋滈亣鍒版枃浠剁粨灝撅紝鍒欒繑鍥濫OF銆?BR> 錛?錛夈佸緩璁嬌鐢╢eof鍑芥暟鏉ュ垽鏂槸鍚︽枃浠剁粨鏉熴傚鏋滄枃浠剁粨鏉燂紝鍑芥暟feof榪斿洖鍊間負1錛屽惁鍒欎負0銆?BR>3銆乫read 璋冪敤鏂瑰紡錛?BR> fread(buffer,size,count,fp); 璇存槑錛?BR> 錛?錛夈乥uffer錛氭槸涓涓寚閽堛傚浜巉read鏉ヨ鏄庯紝瀹冩槸璇誨叆鏁版嵁鐨勫瓨鏀懼湴鍧銆傚fwrite鏉ヨ錛屾槸瑕佽緭鍑烘暟鎹殑鍦板潃銆?BR> 錛?錛夈乻ize錛氳璇誨啓鐨勫瓧鑺傛暟銆傚彲浠ヤ嬌鐢╯izeof鏉ヨ幏寰楀瓧鑺傞暱搴︺?BR> 錛?錛夈乧ount錛氳榪涜璇誨啓澶氬皯涓猻ize瀛楃殑鏁版嵁欏廣?BR> 錛?錛夈乫p錛氭枃浠舵寚閽堛?BR> 錛?錛夈佸鏋渇read鎴杅write璋冪敤鎴愬姛錛屽垯鍑芥暟榪斿洖鍊間負count鐨勫箋?BR>4銆乫write 瑙乫read璇存槑銆?BR>5銆乫printf鍜宖scanf 璋冪敤鏂瑰紡錛?BR> fprintf(鏂囦歡鎸囬拡錛屾牸寮忓瓧絎︿覆錛岃緭鍑哄垪琛級; fscanf(鏂囦歡鎸囬拡錛屾牸寮忓瓧絎︿覆錛岃緭鍏ュ垪琛級; 璇存槑錛?BR> 錛?錛夈佸湪鍐呭瓨涓庣鐩橀綣佷氦鎹㈡暟鎹殑鎯呭喌涓嬶紝寤鴻閲囩敤fread鍜宖write瀹炵幇銆?BR>涓夈佹枃浠剁殑瀹氫綅 1銆乺ewind 璋冪敤鏂瑰紡錛?BR> FILE *fp; rewind(fp); 璇存槑錛?BR> 錛?錛夈乺ewind浣挎枃浠剁殑浣嶇疆鎸囬拡閲嶆柊瀹氫綅浜庢枃浠跺紑澶淬?BR> 2銆乫seek 璋冪敤鏂瑰紡錛?BR> fseek(鏂囦歡綾誨瀷鎸囬拡錛屼綅縐婚噺錛岃搗濮嬬偣錛? 璇存槑錛?BR> 錛?錛夈佽搗濮嬬偣鐢?銆?銆?浠f浛錛屽垎鍒〃紺烘枃浠跺紑濮嬨佹枃浠跺綋鍓嶄綅緗佹枃浠舵湯灝俱?BR> 錛?錛夈佷綅縐婚噺鎸囪搗濮嬬偣涓哄熀鐐癸紝鍚戝墠縐誨姩鐨勫瓧鑺傛暟銆備竴鑸負long鍨嬨?BR> 錛?錛夈乫seek甯哥敤浜岃繘鍒舵枃浠訛紝鍙互瀹炵幇闅忔満璇誨啓銆?BR>3銆乫tell 璋冪敤鏂瑰紡錛?BR> FILE *fp; long i; i=ftell(fp); 璇存槑錛?BR> 錛?錛夈佸嚱鏁拌繑鍥炴枃浠跺綋鍓嶄綅緗紝濡傛灉璋冪敤鍑洪敊鍒欒繑鍥炲間負-1L銆?BR>鍥涖佸嚭閿欑殑媯嫻?BR>1銆乫error 璋冪敤鏂瑰紡錛?BR> FILE *fp; ferror(fp); 璇存槑錛?BR> 錛?錛夈佽繑鍥炲間負0錛岃〃紺烘湭鍑洪敊錛岃繑鍥炲間負1錛岃〃紺哄嚭閿欍?BR> 錛?錛夈佸悓涓涓枃浠舵瘡涓嬈¤皟鐢ㄨ緭鍏ヨ緭鍑哄嚱鏁幫紝鍧囦駭鐢熶竴涓柊 鐨刦error鍑芥暟鍊箋?BR> 錛?錛夈佸湪鎵цfopen鍑芥暟鏃訛紝ferror鍑芥暟鐨勫垵濮嬪艱嚜鍔ㄧ疆涓?銆?BR>2銆乧learerr 璋冪敤鏂瑰紡錛?BR> FILE *fp; clearerr(fp); 璇存槑錛?BR> 錛?錛夛細浣挎枃浠墮敊璇爣蹇楀拰鏂囦歡緇撴潫鏍囧織涓?. ]]> 青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品
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