C语言中输入年月日，判断这一天是一年的第几天…… C语言编程：输入某年某月某日,判断这一天是这一年的第几天?
1#include<stdio.h>
2#include<stdlib.h>
3/*题目：输入某年某月某日，判断这一天是这一年的第几天*/
4intmain(){
5system("color1F");//设定显示框为蓝底白字
6system("modeconcols=80lines=30");//固定显示框尺寸
7/
8intdays[11];
9intyear,moon,day,i,t1,t2;
10while(1){
11loop:
12printf("请输入年份：");
13scanf("%d",&year);
14if(year%4==0&&year%100!=0||year%400==0)
15days[1]=29;
16elsedays[1]=28;//判断是否闰年
17printf("请输入月份：");
18scanf("%d",&moon);
19printf("请输入日期：");
20scanf("%d",&day);
21if(moon>12||day>31||moon==2&&day>days[1]||moon==4&&day>30||moon==6&&day>30||moon==9&&day>30||moon==11&&day>30)
22{
23printf("输入错误，请重新输入
");
24gotoloop;//输入数据错误检查
25}
26days[0]=31;
27days[2]=31;
28days[3]=30;
29days[4]=31;
30days[5]=30;
31days[6]=31;
32days[7]=31;
33days[8]=30;
34days[9]=31;
35days[10]=30;
36t1=0;
37for(i=0;i<moon-1;i++)
38t1=t1+days[i];
39t2=t1+day;
40printf("%d年%d月%d日是这一年的第【%d】天
-----------------------------------------------------------------------------
",year,moon,day,t2);
41}
42
43/
44return0;
45}
扩展资料
Python语言输入某年某月某日，判断这一天是这一年的第几天
year=int(input('year:
'))
month=int(input('month:
'))
day=int(input('day:
'))
s=0
months=[0,31,59,90,120,151,181,212,243,273,304,334]
if0<=month<=12:
s=months[month-1]
else:
print('dataerror')
s+=day
leap=0
if(year%400==0)or((year%4==0)and(year%100!=0)):
leap=1
if(leap==1)and(month>2):
s+=1
print('itisthe%dthday.'%s)
以2月10日为例，应该先把前两个月的加起来，然后再加上5天即本年的第几天，特殊情况，闰年且输入月份大于3时需考虑多加一天。
源代码：
#include "stdio.h"
#include "stdlib.h"
int main()
{
int day,month,year,sum,leap;
printf("
please input year,month,day
");
scanf("%d,%d,%d",&year,&month,&day);
switch(month) /*先计算某月以前月份的总天数*/
{
case 1:sum=0;break;
case 2:sum=31;break;
case 3:sum=59;break;
case 4:sum=90;break;
case 5:sum=120;break;
case 6:sum=151;break;
case 7:sum=181;break;
case 8:sum=212;break;
case 9:sum=243;break;
case 10:sum=273;break;
case 11:sum=304;break;
case 12:sum=334;break;
default:printf("data error
");break;
}
sum=sum+day; /*再加上某天的天数*/
if(year%400==0||(year%4==0&&year%100!=0)) /*判断是不是闰年*/
{
leap=1;
}
else
{
leap=0;
}
if(leap==1&&month>2) /*如果是闰年且月份大于2,总天数应该加一天*/
{
sum++;
}
printf("It is the %dth day.
",sum);
return 0;
}
输出
please input year,month,day
2019,02,10
It is the 41th day.
扩展资料
c语言编写程序根据输入的时间分别输出问候语
#include <stdio.h>
int main()
{
int a;
printf("请输入时间，例如：17");
scanf("%d",&a);
if(a<=12&&a>=0) printf("早");
else if(a>12&&a<=14) printf("午");
else printf("晚");
printf("%d",s);
return 0;
#include<stdio.h>
int main()
{
int day,month,year,sum=0,leap;
printf("输入年月日如2019 7 12\n");
scanf("%d %d %d",&year,&month,&day);
switch(month)
{
case 1:sum=0;break;
case 2:sum=31;break;
case 3:sum=59;break;
case 4:sum=90;break;
case 5:sum=120;break;
case 6:sum=151;break;
case 7:sum=181;break;
case 8:sum=212;break;
case 9:sum=243;break;
case 10:sum=273;break;
case 11:sum=304;break;
case 12:sum=334;break;
default:printf("data error");break;
}
sum=sum+day;
if((year%400==0||(year%4==0&&year%100!=0))&&month>2)
sum++;
printf("这是这一年的第%d天。",sum);
return 0;
}
方法2
#include<stdio.h>
int day_of_year(int (*p)[13],int year,int month,int day)
{
int i,leap;
leap=(year%100!=0 && year%4 ==0||year%400 ==0);
for(i=1;i<month;i++)
day+=*(*(p+leap)+i);
return day;
}
main()
{
static int day_tab[][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}};
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%d\n",day_of_year(day_tab,a,b,c));
}
不能根据当月天数进行累计，只能根据上个月天数累加，因此可从当月开始减1，计算上月天数，再减1计算上上个月天数，一直减到0为止。
#include<iostream>
using namespace std;
int main()
{
int y, m, d, x, i;
cout << "请输入年，月，日" << endl;
cin >> y >> m >> d;
x = 0;
i = m;
while (i!=0)//从当月开始减1直到等于0循环停止
{
switch (i-1)//当月的天数是d，上个月的天数才是30或31，应根据上个月天数分支
{
case 1:case 3:case 5: case 7: case 8: case 10: case 12: x+=31;break;
case 4:case 6: case 9: case 11: x+=30;break;
case 2:x=((y%4==0 && y%100 != 0) || (y%400==0))?(x+29):(x+28);break;
case 0:x+=d;break;//上月减1是0，表示已经减到了当月，直接加上d即可，注意不能x=d
}
i-- ;
}
cout << "为这一年的第" << x << "天" << endl;
return 0;
}
c语言程序，输入年月日，判断这一天是这一年的第几天，同时判断这一天是星期几。（用switch语句）~
cat ex1.c/* 程序分析：以3月5日为例，应该先把前两个月的加起来， 然后再加上5天即本年的第几天，特殊情况，闰年且输入 月份大于3时需考虑多加一天。*/#includeint main(){ int day, month, year, sum, leap; printf("
please input year,month,day
"); scanf("%d%d%d",&year,&month,&day); switch(month){ //先计算某月以前月份的总天数 case 1:sum = 0;break; case 2:sum = 31;break; case 3:sum = 59;break; case 4:sum = 90;break; case 5:sum = 120;break; case 6:sum = 151;break; case 7:sum = 181;break; case 8:sum = 212;break; case 9:sum = 243;break; case 10:sum = 273;break; case 11:sum = 304;break; case 12:sum = 334;break; default:printf("data error!
");break; } sum = sum + day; //再加上某天的天数 if(year%400==0||(year%4==0&&year%100!=0)){ //判断是不是闰年 leap = 1; }else{ leap = 0; } if(leap == 1&&month > 2){ //如果是闰年且月份大于2，总数加1天 sum++; } printf("It is the %dth day.
",sum);}./explease input year,month,day2019 3 21It is the 80th day.
用C语言编写:输入某年某月某日,判断这一天是这一年的第几天?
答：main(){ int n,year,month,day,month_day_sum=0,sum,month_day[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};printf("please input the \"year month day\"\n");scanf("%d%d%d",&year,&month,&day);if(year%100!=0&&year%4==0||year%400) month_day[2]=29;if(day>...
用C语言写一个函数,给出年月日,计算该日是该年的第几天 用#include<ios...
答：=0)) return 1; else return 0;}int main(){ int year,month,day; int dayCount=0,i; int mon[]={31,28,31,30,31,30,31,31,30,31,30,31}; cout<<"请输入当前的年,月,日: ";cin>>year>>month>>day; for(i=0;i<month-1;i++) dayCount+=mo...
c语言编程:输入某年某月某日,计算出这一天是该年的第几天?该怎么解答啊...
答：//输入年月日，输出是该年第几天 include<stdio.h> int sum(int month,int day){ int days[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};int i;for(i=1;i<month;i++)day+=days[i];return(day);} int leap(year){ int leap=0;if((year%4==0&&year%100!=0)||(...
输入某年某月某日,判断这一天是这一年的第几天?用C#语言 C语言运行不...
答：int iyear = int.Parse(year); Console.Write("输入月份:"); string month = Console.ReadLine(); int imonth = int.Parse(month); Console.Write("输入日期:"); string day = Console.ReadLine(); int iday = int.Parse(day); int day_in_year = 0; for ...
C语言程序,输入年月日算出当天星期几
答：include <stdio.h> int main(){ int day,mn,yr,i,days=0,s,k;int mont[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};char wek[][9]={ {'S','u','n','d','a','y'},{'M','o','n','d','a','y'},{'T','u','e','s','d','a','y'},{'W','...
c语言编程:输入年月日,求出该天是该年的第几天
答：include<stdio.h> intmain(){intday,month,year,sum,leap;printf("\n请输入年、月、日,格式为:年,月,日(2015,12,10)\n");scanf("%d%d%d",&year,&month,&day);//格式为:20190510 switch(month)//先计算某月以前月份的总天数 {case1:sum=0;break;case2:sum=31;break;case3:sum=59;...
C语言编程:输入某年某月某日,判断这一天是这一年的第几天?
答：{ int i, days = 0;int year, month, day;int day_tab[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};printf("输入年、月、日，用空格隔开：");scanf("%d%d%d", &year, &month, &day);for (i=1; i =3)days+=1;printf("%d年%d月%d日是这一年的...
C语言编程(程序怎样编写):给定年、月、日,计算该日是该年的第几天,然 ...
答：/**程序描述:给定年、月、日，计算该日是该年的第几天，然后计算该日是星期几。*/#include <stdio.h>int mon[]={31,28,31,30,31,30,31,31,30,31,30,31};int leap_year(int n){ if(n%400==0||(n%4==0 && n%100!=0)) return 1; else return 0;}int cal...
编辑一个C语言程序:输入任意年月日,判断该天是这一年的第几天。_百度...
答：printf("---输入年,月,日:");while (scanf("%d,%d,%d", &y, &m, &d)==3) { printf("答: %d年%d月%d日是第%d天.\n\n---输入年,月,日:", y, m, d, Ymd2Days(y,m,d));} return 0;} 年月日数字用逗号隔开. 想结束的时候输入一个0就可以了. 例如：---输入年,月,...
用vb语言编写"给出年月日,计算它是一年中的第几天"
答：- (y Mod 4 = 0 And y Mod 100 > 0 Or y Mod 400 = 0) And (m > 2)Text4.Text = m & "月" & d & "日是" & y & "年的第 " & d1 & " 天"End Sub Private Sub Form_Load()Text1.Text = ""Text2.Text = ""Text3.Text = ""Text4.Text = ""End Sub ...
