回复：计算任何一天是星期几的C语言源代码.

快试试吧，
可以对自己使用挽尊卡咯~

◆

#include<stdio.h>

main()
{
int i,w,year,month,day,days=0;
int Y=1900;
int mon[13]={0,31,29,31,30,31,30,31,31,30,31,30,31};

printf("input year:");
scanf("%d",&year);

printf("input month:");
scanf("%d",&month);

printf("input day:");
scanf("%d",&day);

if(Y>=1900)
{
for(Y=1900;Y<=year;Y++)
{
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
days+=366;
else
days+=365;
}
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
mon[2]=29;
else
mon[2]=28;
for(i=0;i<month;i++)
days=days+mon[i];
days=days+day;
}
if(Y<1900)
{
for(Y=1900;Y>year;Y--)
{
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
days+=366;
else
days+=365;
}
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
mon[2]=29;
else
mon[2]=28;
for(i=0;i<month;i++)
days=days-mon[i];
days=days-day;
}
w=days%7;

switch(w)
{
case 1: printf("Monday."); break;
case 2: printf("Tuesday."); break;
case 3: printf("Wednesday."); break;
case 4: printf("Thursday."); break;
case 5: printf("Friday."); break;
case 6: printf("Saturday."); break;
case 0: printf("Sunday."); break;
}
printf("\n");
}

快试试吧，
可以对自己使用挽尊卡咯~

◆

小弟也来发一个任意日期对应星期几的程序．

#include<stdio.h>

main()
{
int i,w,year,month,day,days=0;
int Y=1900;
int mon[13]={0,31,29,31,30,31,30,31,31,30,31,30,31};

printf("input year:");
scanf("%d",&year);

printf("input month:");
scanf("%d",&month);

printf("input day:");
scanf("%d",&day);

if(Y>=1900)
{
for(Y=1900;Y<=year;Y++)
{
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
days+=366;
else
days+=365;
}
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
mon[2]=29;
else
mon[2]=28;
for(i=0;i<month;i++)
days=days+mon[i];
days=days+day;
}
if(Y<1900)
{
for(Y=1900;Y>year;Y--)
{
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
days+=366;
else
days+=365;
}
if((Y%4==0)&&(Y%100!=0)||(Y%400==0))
mon[2]=29;
else
mon[2]=28;
for(i=0;i<month;i++)
days=days-mon[i];
days=days-day;
}
w=days%7;

switch(w)
{
case 1: printf("Monday."); break;
case 2: printf("Tuesday."); break;
case 3: printf("Wednesday."); break;
case 4: printf("Thursday."); break;
case 5: printf("Friday."); break;
case 6: printf("Saturday."); break;
case 0: printf("Sunday."); break;
}
printf("\n");
}

不感兴趣

开通SVIP免广告

蒙了!
都是高手啊!

#include <windows.h>
#include <iostream>
using namespace std;

int main()
{
SYSTEMTIME stSysTime[3];
memset( &stSysTime[0], 0, sizeof( SYSTEMTIME ) * 3 );
GetSystemTime( &stSysTime[0] );

cout<< "年:" <<endl;
cin>> stSysTime[1].wYear;
cout<< "月:" <<endl;
cin>> stSysTime[1].wMonth;
cout<< "日:" <<endl;
cin>> stSysTime[1].wDay;

SetSystemTime( &stSysTime[1] );
GetLocalTime( &stSysTime[2] );
cout<< "星期:"<< stSysTime[2].wDayOfWeek <<endl;

SetSystemTime( &stSysTime[0] );
return 0;
}

char wek[][9]={ {'S','u','n','d','a','y'},
{'M','o','n','d','a','y'},
{'T','u','e','s','d','a','y'},
{'W','e','d','n','s','d','a','y'},
{'T','h','u','r','s','d','a','y'},
{'F','r','i','d','a','y'},
{'S','a','t','u','r','d','a','y'}

..一二三四五六七,我们等的好着急..

125.85.129.*

快试试吧，
可以对自己使用挽尊卡咯~

◆

我也编写了一个计算任意天是星期几的C程序,
网址:http://zhyong319.blog.163.com/blog/static/685720520080241015640

多多指教哈.

125.85.129.*

快试试吧，
可以对自己使用挽尊卡咯~

◆

也把我自己写的原代码公布出来

#include "stdio.h"
main ()
{
int choose,year,leap,month,day,week,i;
int temp=0,a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
printf ("\n1.判断是否是闰年\n\n2.查询任意天是星期几\n\n3.退出\n\n");
printf ("请输入数字1-3：");
scanf ("%d",&choose);
switch (choose)
{
case 1:{printf ("\n\n");
printf ("输入年:");
scanf ("%d",&year);
printf ("\n");
if ((year%4==0)||(year%400==0)&&(year%100!=0)) leap=1;
else leap=0;
if (leap) printf ("对,是闰年.");
else printf ("不是闰年!");
break;
}

case 2:{printf ("\n\n");
printf ("输入年,月,日并按回车键,中间请用空格隔开.\n\n");
scanf ("%d%d%d",&year,&month,&day);
if ((year%4==0)||(year%400==0)&&(year%100!=0)) a[2]=29;
for (i=1;i<month;i++)
temp=a[i]+temp;
temp=temp+day;
printf ("\n");
printf ("%d-%d-%d 是%d年的第%d天.",year,month,day,year,temp);
week=((year-1)+(year-1)/4-(year-1)/100+(year-1)/400+temp)%7;
printf ("\n");
printf ("%d-%d-%d是 ",year,month,day);
switch (week)
{
case 0:{printf ("星期天");break;}
case 1:{printf ("星期一");break;}
case 2:{printf ("星期二");break;}
case 3:{printf ("星期三");break;}
case 4:{printf ("星期四");break;}
case 5:{printf ("星期五");break;}
case 6:{printf ("星期六");break;}
}

printf ("\n");
break;
}

case 3:{printf ("按任意键退出");break;}

}

printf ("\n\n\n");
getch();
}

hao

不感兴趣

开通SVIP免广告

for (i=0;i<mn;i++)
days+=mont[i];
days+=day;
s=yr-1+(int)((yr-1)/4)-(int)((yr-1)/100)+(int)((yr-1)/400)+days;
k=s%7;
LZ能解释下这段代码的含义？尤其是s=yr-1+(int)((yr-1)/4)-(int)((yr-1)/100)+(int)((yr-1)/400)+days;

见笑了才学�

判断闰年不是这样判断吗？if (yr%4==0 &&yr%100!=0) || (yr%400==0)

mont[2]=29;
else
mont[2]=28;
for (i=0;i<mn;i++)
days+=mont[i];
days+=day;
s=yr-1+(int)((yr-1)/4)-(int)((yr-1)/100)+(int)((yr-1)/400)+days;
k=s%7
为什么运行就出错�

if (yr%4==0&&yr%100!=0||yr%400==0)
mont[2]=29;
else
mont[2]=28;
for (i=0;i<mn;i++)
days+=mont[i];
days+=day;
s=yr-1+(int)((yr-1)/4)-(int)((yr-1)/100)+(int)((yr-1)/400)+days;
k=s%7;
运行后正确了