新手求教C语言

[yy19850322]

输出出生年月日时，如何实现1.年份不能大于当前年月；2，大月小月2月天数判断；
跪求代码，谢谢各位啦

[HonryZZ]

一个简单的...zzzzzz

#include <stdio.h>
#include <time.h>

int GetCurrentYear()
{
	struct tm *currDT;
	time_t now;
	
	time(&now);
	currDT = localtime(&now);
	
	printf("%d\n", currDT->tm_year + 1900);
	
	return (currDT->tm_year + 1900);
}

int GetCurrentMonth()
{
	struct tm *currDT;
	time_t now;
	
	time(&now);
	currDT = localtime(&now);
	
	printf("%d\n", currDT->tm_mon + 1);
	
	return (currDT->tm_mon + 1);
}

int GetCurrentDay()
{
	struct tm *currDT;
	time_t now;
	
	time(&now);
	currDT = localtime(&now);
	
	printf("%d\n", currDT->tm_mday);
	
	return (currDT->tm_mday);
}


int CheckLeapYear(int year)
{
	int isLeapYear = 0;
	
	isLeapYear = !(year % (year % 100 ? 4 : 400));
			
	return isLeapYear;
}

int CheckYearValid(int currYear, int currMonth, int currDay, int birthYear, int birthMonth, int birthDay)
{
	if (birthYear <= 0)
	{
		printf(".....\n");
		return -1;
	}
	
	if (birthYear > currYear)
	{
		printf("birthYear(%d) can not be later than %d\n", birthYear, currYear);
		return -2;
	}
	
	return 0;
	
}

int CheckMonthValid(int currYear, int currMonth, int currDay, int birthYear, int birthMonth, int birthDay)
{
	if ((birthMonth <= 0) || (birthMonth > 12))
	{
		printf("month(%d) is invalid, it should range from 1 to 12\n", birthMonth);
		return -1;
	}
	if ((currYear == birthYear) && (currMonth < birthMonth))
	{
		printf("birthMonth(%d) can not be later than %d, when birthYear is %d\n", birthMonth, currMonth, birthYear);
		return -2;
	}
	
	return 0;
}

int CheckDayValid(int currYear, int currMonth, int currDay, int birthYear, int birthMonth, int birthDay)
{
	int MonthDays[] = {0xff, 31, 0xff, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0xff};
	
	if ((birthDay <= 0) || (birthDay > 31 ))
	{
		printf("Invalid day : %d\n", birthDay);
		return -1;
	}
	
	if (birthMonth == 2)
	{
		if (CheckLeapYear(birthYear))
		{
			if (birthDay >= 30)
			{
				printf("Invalid day(%d), %d is a leapYear and Feb. should smaller than 30\n", birthDay, birthYear);
				return -2;
			}
		}
		else
		{
			if (birthDay >= 29)
			{
				printf("Invalid day(%d), %d is not a leapYear and Feb. should smaller than 29\n", birthDay, birthYear);
				return -3;
			}
		}
	}
	else
	{
		if (birthDay > MonthDays[birthMonth])
		{
			printf("Invalid day(%d) when month is %d\n", birthDay, birthMonth);
			return -4;
		}
	}
	
	if ((currYear == birthYear) && (currMonth == birthMonth) && (currDay < birthDay))
	{
		printf("birthDay(%d) can not be later than %d, when birthYear is %d and birthMonth is %d\n", birthDay, currDay, birthYear, birthMonth);
		return -5;
	}

	return 0;
}

int main()
{
	int curr_year, curr_month, curr_day;
	int birth_year, birth_month, birth_day;
	int flag = 0;
	
	curr_year = GetCurrentYear();
	curr_month = GetCurrentMonth();
	curr_day = GetCurrentDay();
	do
	{
		printf("your birthday ? input as year-month-day:\n");
		scanf("%d-%d-%d", &birth_year, &birth_month, &birth_day);
		flag = 0;
		if (CheckYearValid(curr_year, curr_month, curr_day, birth_year, birth_month, birth_day) < 0)
		{
			flag = 1;
			continue;
		}
		if (CheckMonthValid(curr_year, curr_month, curr_day, birth_year, birth_month, birth_day) < 0)
		{
			flag = 1;
			continue;
		}
		if (CheckDayValid(curr_year, curr_month, curr_day, birth_year, birth_month, birth_day) < 0)
		{
			flag = 1;
			continue;
		}		
		printf("... %d-%d-%d...\n", birth_year, birth_month, birth_day);	
	}while (flag);
	return 0;
}

[wasx1]

可以自己先尝试写一下，大家帮你改。
不然对你也几乎没什么帮助啊

[重庆-老白]

作业帖子就把分搞搞一点额

[manytao]

..........lz自己写。

[angle_xiaoqing]

给你个简单的
int days(int year)
{
if((year%4 == 0&&year%100 != 0)||(year%400 == 0))
days = 28;
days = 29;
return days;
}
其返回值为不同年的二月的天数

[tttyulong]

lz 用的是那个教材 好象是书上的立体样？怪哉！

[xuhai20092009]

学习了！！！

[cys_wyd]

[Quote=引用 6 楼 angle_xiaoqing 的回复:]
给你个简单的
int days(int year)
{
if((year%4 == 0&&year%100 != 0)||(year%400 == 0))
days = 28;
days = 29;
return days;
}
其返回值为不同年的二月的天数
[/Quote]


days = 28;
days = 29;

这个没有看懂！

[qq149850508]

第一个days是if里面的 第二个是外面的 相当于else.

[寂寞的泡面]

建议楼主先简单的写出设计思想，再问大家代码怎么写。

[xspace_time]

if(getinputtime(char *p)<=getsystemtime.year)

[赵4老师]

COleDateTime
COleDateTimeSpan

[djvfe]

作业题，杯具

[yuqingbingo]

高手不少！！代码也太复杂了某位仁兄！

[heisenbergg]

你自己先弄个代码麻，下面别人会帮你指出问题的

[fahab0b]

还是自己写吧，不然没有任何的帮助的！！

[lijianbin9]

[Quote=引用 5 楼 honryzz 的回复:]

一个简单的...zzzzzz

C/C++ code

#include <stdio.h>
#include <time.h>

int GetCurrentYear()
{
struct tm *currDT;
time_t now;

time(&now);
currDT = localtime(&now);

……
[/Quote]不错啊

[qq850609901]

讨厌“跪求代码”的。干什么你就“跪求”，一点尊严都没有