如何用C语言编写一个求年龄的程序

Posted 2023-05-12

知道出生年月日和当前的年月日，用C编写一个程序求出当前的年龄，年龄要精确到日。即多少岁零几个月几日，会的帮帮忙，谢谢。

//帮你搞了一个,刚有点小错误,修正了一下
#include"stdio.h"
#include"math.h"

typedef struct

int year;
int month;
int day;
Date;

int date[2][12]=31,28,31,30,31,30,31,31,30,31,30,31,31,29,31,30,31,30,31,31,30,31,30,31;

int judge(int year) //判断是否为闰年//

int flag=0;
if((year%4==0&&year%100!=0)||year%400==0) flag=1;
else flag=0;
return flag;


Date work(Date user[2]) //计算两个日期相差//

Date rec,tmpdate;
if(user[1].month>user[0].month||(user[1].month==user[0].month&&user[1].day>=user[0].day))
rec.year=user[1].year-user[0].year;
else
rec.year=user[1].year-user[0].year-1;
tmpdate.year=user[0].year+rec.year;
tmpdate.month=user[0].month;
tmpdate.day=user[0].day;
int m=judge(user[1].year);
if(tmpdate.year<user[1].year)

if(tmpdate.day<= user[1].day)

rec.month= 12-tmpdate.month+user[1].month;
rec.day= user[1].day-tmpdate.day;

else

rec.month= 11-tmpdate.month+user[1].month;
rec.day=date[m][user[1].month]-tmpdate.day+ user[1].day;


else

if(tmpdate.day<= user[1].day)

rec.month= user[1].month-user[0].month;
rec.day= user[1].day-tmpdate.day;

else

rec.month= user[1].month-1;
rec.day=date[m][user[1].month]-tmpdate.day+ user[1].day;


return rec;



int main()

Date user[2];
int i;
printf("Please input 2 dates(such as 2008.10.2).\n");
for(i=0;i<2;i++)

scanf("%d.%d.%d",&user[i].year,&user[i].month,&user[i].day);

Date d=work(user);
printf("There are %d years %d month %d days.\n",d.year,d.month,d.day);
getchar();
参考技术A #include <time.h>
#include <stdio.h>
#include <string.h>

#ifdef _DEBUG
void printTm(struct tm *t)

printf("===========================\n");
printf("tm_year = %d\n", t->tm_hour);
printf("tm_year = %d\n", t->tm_isdst);
printf("tm_year = %d\n", t->tm_mday);
printf("tm_year = %d\n", t->tm_min);
printf("tm_year = %d\n", t->tm_mon);
printf("tm_year = %d\n", t->tm_sec);
printf("tm_year = %d\n", t->tm_year);
printf("===========================\n");

#endif

int main()

time_t ltime;
struct tm *today;
struct tm *minus;
struct tm birthday;
long l;

time(<ime);
today = localtime(<ime);
today->tm_hour = today->tm_min = today->tm_sec = 0;

memset(&birthday, 0, sizeof(struct tm));
printf("Input birthday like year-month-day:\n");
scanf("%d-%d-%d",&birthday.tm_year, &birthday.tm_mon, &birthday.tm_mday);
birthday.tm_year -= 1900;
birthday.tm_mon -= 1;
#ifdef _DEBUG
printTm(&birthday);
printTm(today);
#endif
l = mktime(today) - mktime(&birthday);
minus = gmtime(&l);
printf("%d years %d monthes %d days\n", minus->tm_year - 70, minus->tm_mon, minus->tm_mday);

return 0;

如何用C语言编写PHP扩展的详解

参考技术A 1：预定义
在home目录，也可以其他任意目录，写一个文件，例如caleng_module.def
内容是你希望定义的函数名以及参数：
int a(int x,int y)
string b(string str,int n)

2：到php源码目录的ext目录
#cd /usr/local/php-5.4.0/ext/

执行命令，生成对应扩展目录
#./ext_skel --extname=caleng_module --proto=/home/hm/caleng_module.def

3：修改config.m4
去掉dnl的注释
PHP_ARG_ENABLE(caleng_module, whether to enable caleng_module support,
Make sure that the comment is aligned:
[ --enable-caleng_module Enable caleng_module support])

4：修改caleng_module.c

.代码如下:

/* proto int a(int x, int y)
*/
PHP_FUNCTION(a)

int argc = ZEND_NUM_ARGS();
int x;
int y;
int z;
if (zend_parse_parameters(argc TSRMLS_CC, "ll", &x, &y) == FAILURE)

return;
z=x+y;
RETURN_LONG(z);

/* */
/* proto string b(string str, int n)
*/
PHP_FUNCTION(b)

char *str = NULL;
int argc = ZEND_NUM_ARGS();
int str_len;
long n;
char *result;
char *ptr;
int result_length;

if (zend_parse_parameters(argc TSRMLS_CC, "sl", &str, &str_len, &n) == FAILURE)
return;
result_length = str_len * n;
result = (char *) emalloc(result_length + 1);
ptr = result;
while (n--)
memcpy(ptr, str, str_len);
ptr += str_len;

*ptr = '\0';
RETURN_STRINGL(result, result_length, 0);

/* */

5：生成扩展库
#cd ./caleng_module
#/usr/local/php/bin/phpize
#./configure --with-php-config=/usr/local/php/bin/php-config
#make
#make install

6：到php的对应extensions目录
如上图所示
#cd /usr/local/php/lib/php/extensions/no-debug-non-zts-20100525/
改目录下有生成的caleng_module.so文件

7：修改php.ini
php.ini如果找不到可以从phpinfo()打出的信息看到
#cd /usr/local/php/lib/
php.ini增加扩展信息
extension=caleng_module.so

8:重启Apache
# /usr/local/apache2/bin/apachectl restart

9:检查加载
/usr/local/php/bin/php -m

10:PHP调用

.代码如下:

echo a(1,2);

输出 3 就说明成功了！
=================================
下面是原文
Linux下用C开发PHP扩展
一、首先下载PHP源码包，假设源码包目录为：/software/php-5.2.13
一、首先下载PHP源码包，假设源码包目录为：/software/php-5.2.13
#> cd /software/php-5.2.13/ext
二、假设我们要开发一个名为caleng_module的扩展，该扩展包含两个函数：a--处理两个整型相加和b-处理字符串重复输出；
1、首先编写一个函数定义文件，该文件编写函数原型后缀为def，假设为：caleng_module.def
int a(int x, int y)
string b(string str, int n)
2、通过扩展骨架生成器，将在ext目录下自动建立扩展目录caleng_module
#> ./ext_skel --extname=caleng_module --proto=caleng_module.def
3、修改配置文件: #> vim /software/php-5.2.13/ext/caleng_module/config.m4，将如下行的注释标签"dnl"去掉，修改后如下所示：
PHP_ARG_ENABLE(myfunctions, whether to enable myfunctions support,
Make sure that the comment is aligned:
[ --enable-myfunctions Enable myfunctions support])
4、完善函数a和b的功能: #> vim /software/php-5.2.13/ext/caleng_module/caleng_module.c
PHP_FUNCTION(a)

int x, y, z;

int argc = ZEND_NUM_ARGS();

if (zend_parse_parameters(argc TSRMLS_CC, "ll", &x, &y) == FAILURE)
return;
z = x + y;
RETURN_LONG(z);

PHP_FUNCTION(b)

char *str = NULL;
int argc = ZEND_NUM_ARGS();
int str_len;
long n;
char *result;
char *ptr;
int result_length;

if (zend_parse_parameters(argc TSRMLS_CC, "sl", &str, &str_len, &n) == FAILURE)
return;
result_length = str_len * n;
result = (char *) emalloc(result_length + 1);
ptr = result;
while (n--)
memcpy(ptr, str, str_len);
ptr += str_len;

*ptr = '\0';
RETURN_STRINGL(result, result_length, 0);

三、编译安装，假设php的安装目录为:/usr/localhost/webserver/php
#> cd /software/php-5.2.13/ext/caleng_module
#> /usr/localhost/webserver/php/bin/phpize
#> ./configure --with-php-config=/usr/localhost/webserver/php/bin/php-config
#> make
#> make install
现在将在/usr/local/webserver/php/lib/php/extensions/no-debug-non-zts-20060613目录下生成caleng_module.so文件
在php.ini配置文件中加入: extension=caleng_module.so.
搞定收工