c语言简单编程大虾们帮忙啊 !

发布网友 发布时间：2022-04-21 00:09

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热心网友 时间：2023-10-26 23:51

#include<stdio.h>
void main(){
int year,month,day,sum,leap;
printf("prease imput year month day");
scanf("%d%d%d",&year,&month,&day);
switch(month){
case 1 :sum=0+day;break;
case 2 :sum=31+day;break;
case 3 :sum=59+day;break;
case 4 :sum=90+day;break;
case 5 :sum=120+day;break;
case 6 :sum=151+day;break;
case 7 :sum=181+day;break;
case 8 :sum=212+day;break;
case 9 :sum=243+day;break;
case 10 :sum=273+day;break;
case 11 :sum=304+day;break;
case 12 :sum=334+day;break;
default:printf("输入错误\n");break;
}
if((year%4==0&&year%100!=0)||(year%400==0))
leap=1;
else leap=0;
if(leap==1&&month>2) sum++;
printf("该天为第%d天\n",sum);}

其实这个问题我知道的还有一种写法 更简单一下 那就是把每一个月的天数设置为一个数组的值 相应的下标加一就是月数 一并附上
#include<iostream>
using namespace std;
void main()
{
int a[12] = {0,31,59,90,120,151,181,212,243,273,304,334};
int i,b[12] = {0,31,60,91,121,152,182,213,244,274,305,335},year,month,day,allday;
cout<<"please input year,month,day : ";
cin>>year>>month>>day;
if(year%400==0||(year%4==0&&year%100!=0))
{
for(i = 0;i<12;i++)
{
if(month == i+1) allday = b[i] + day;

}
cout<<year<<"年"<<"第"<<allday<<"天"<<endl;
}
else
{
for(i = 0;i<12;i++)
{
if(month == i+1) allday = a[i] + day;
break;
}
cout<<year<<"年"<<"第"<<allday<<"天"<<endl;
}
}

热心网友 时间：2023-10-26 23:51

#include"stdio.h"
#include"string.h"
typedef struct
{
int year;
int month;
int day;
}MyDate;
int GetAbsDays(MyDate x)
{
int i;
int month_day[] = {31,28,31,30,31,30,31,31,30,31,30,31};
int year = x.year-1; // 因为欲求距离1年1月1日的距离
int days = year * 365 + year/4 - year/100 + year/400;
if(x.year%4==0 && x.year%100!=0 || x.year%400==0) month_day[1]++;
for(i=0; i<x.month-1; i++)
days += month_day[i];
days += x.day-1;
return days;
}
int GetDiffDays(MyDate a, MyDate b)
{
return GetAbsDays(b) - GetAbsDays(a);
}
int main(int argc, char* argv[])
{
MyDate a = {1,1,1};
MyDate b ;
char Data[8][15]={"星期一","星期二","星期三","星期四","星期五","星期六","星期日",};
scanf("%d%d%d",&b.year,&b.month,&b.day);
int n = GetDiffDays(a,b);
puts(Data[n%7]);
printf("与元年一月一日 相差%d天\n", n);
}