计算输入的日期是当年的第几天，包括对输入错误时的检代码,C代码库,德仔网

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【C】计算输入的日期是当年的第几天，包括对输入错误时的检
作者:王维来 / 发布于2015/8/3/ 1420
计算输入的日期是当年的第几天，包括对输入错误时的检测。VC2010环境下的程序

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	// cout_date.cpp : Defines the entry point for the console application.
	//
	#include "stdafx.h"
	#include "count_date.h"
	
	int _tmain(int argc, _TCHAR* argv[])
	{
	 int work = 1;
	 int count = 0;
	 int YearHandle(); //YearHandle() function declaration
	 int MonthHandle(); //MonthHandle() function declaration
	 int DayHandle(); //DayHandle() function declaration
	 while(work)
	 {
	 s.year =0;
	 s.month =0;
	 s.day =0;
	 count =0;
	 system("cls"); //clear the screen.
	 system("color 7c"); //set the color of background.
	 printf("\n--------------------------Welcome To The Count System--------------------------\n");
	 putchar('\n');
	
	 s.year = YearHandle();
	 s.month = MonthHandle();
	 s.day = DayHandle();
	
	 for(int i=1; i<s.month; ++i)
	 {
	 count+=yearArray[sign][i]; //count the day.
	 }
	
	 count+=s.day;
	 printf("The %d/%d/%d is the %dth of this year!\n", s.year, s.month, s.day, count); //ouput the relut.
	 putchar('\n');
	 printf("Whether exit the count system?(1 is not exit,0 is exit)\n"); //whether exit the system.
	 scanf("%d", &work);
	 fflush(stdin);
	
	 while (work!=0 && work!=1) //kik must is 1 or 0.
	 {
	 printf(" Input is error,Please input again!\n");
	 scanf("%d", &work);
	 fflush(stdin);
	 }
	 }
	 printf("\n--------------------Thanks For You Using The Count System !--------------------\n");
	 Sleep(2000); //deley some times.
	 return 0;
	}
	
	/* YearHandle() function to enter the year and check*/
	int YearHandle()
	{
	 bool kos = 0;
	 bool Check_digit(char *kk);
	 printf("Please input the year: ");
	 char year[10]={0};
	 gets(year);
	 putchar('\n');
	 kos = Check_digit(year);
	 s.year = atoi(year);
	 while((s.year<=1000 || s.year>=9000) || kos) // input the year must between in 1000 to 9000.
	 {
	 printf("The year is error, Please input again!\n");
	 printf("Please input the year: ");
	 gets(year);
	 putchar('\n');
	 kos = Check_digit(year);
	 s.year = atoi(year);
	 }
	 return s.year;
	}
	
	/* MonthHandle() function to enter the month and check*/
	int MonthHandle()
	{
	 bool kos = 0;
	 bool Check_digit(char *kk);
	 printf("Please input the month: ");
	 char month[10]={0};
	 gets(month);
	 putchar('\n');
	 kos = Check_digit(month);
	 s.month = atoi(month);
	
	 while(s.month<1 || s.month>12 || kos) //input the month must between in 1 to 12.
	 {
	 printf("The month is error,Please input again!\n");
	 printf("Please input the month: ");
	 gets(month);
	 putchar('\n');
	 kos = Check_digit(month);
	 s.month = atoi(month);
	 }
	 return s.month;
	}
	
	/* DayHandle() function to enter the day and check*/
	int DayHandle()
	{
	 bool kos = 0;
	 bool Check_digit(char *kk);
	 printf("Please input the day: ");
	 char day[10]={0};
	 gets(day);
	 putchar('\n');
	 kos = Check_digit(day);
	 s.day = atoi(day);
	 sign = ((s.year%4==0) && (s.year%100!=0) || (s.year%400==0)); //judge the leap year.
	
	 while(s.day <1 || s.day>yearArray[sign][s.month] || kos) //the day must in the month.
	 {
	 printf("The day is error,Please input again!\n");
	 printf("Please input the day: ");
	 gets(day);
	 putchar('\n');
	 kos = Check_digit(day);
	 s.day = atoi(day);
	 }
	 return s.day;
	}
	
	/*Check_digit() function to check whether the input is a number*/
	bool Check_digit(char *kk)
	{
	 int a = strlen(kk);
	 for(int i=0; i<a; ++i)
	 {
	 if(((int)(*(kk+i)) < 48) || ((int)(*(kk+i)) > 57))
	 {
	 return 1;
	 }
	 }
	 return 0;
	}

	

	

	

	#include "stdafx.h"
	#include "stdlib.h"
	#include "windows.h"
	#define UNCHAR unsigned char
	UNCHAR yearArray[2][13] =
	{ /* 0 1 2 3 4 5 6 7 8 9 10 11 12 */
	 {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}
	};
	struct //defining the time structure
	
	 {
	 int year;
	 int month;
	 int day;
	}s={0,0,0};
	bool sign = 0;
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