C语言——万年历打印(详细易懂）

一时失言乱红尘 2022-10-16 04:53 227阅读 0赞

## **实现效果如图:** ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MzM5MTk1Nw_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MzM5MTk1Nw_size_16_color_FFFFFF_t_70 1]

> **大概分以下几个点：**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MzM5MTk1Nw_size_16_color_FFFFFF_t_70 2]

## **代码如下:** ##

#include<stdio.h>
    int Leap_year[13] = { 0,31,29,31,30,31,30,31,31,30,31,30,31 };
    int Com_year[13]={ 0,31,28,31,30,31,30,31,31,30,31,30,31}; 
    char Week[7][5] = {  "一","二","三","四","五","六","日" };
    int year, month, day;
    //用户输入日期
    int User_Scanf()
    { 
    	printf("请输入年-月-日:");
    	while (scanf("%d-%d-%d", &year, &month, &day) != EOF)
    	{ 
    		//是否在有效范围内检查
    		if (year <= 0 || year >= 10000 || month < 0 || month >= 13 || day < 0 || day >= 31)
    		{ 
    			printf("Error!\n");
    			continue;
    		}
    		return 0;
    	}
    }
    //打印星期
    void Print_Week()
    { 
    	printf("********************************************************\n");
    	printf("\t\t\t万年历\t\t\t\n");
    	for (int i = 0; i < 7; i++)
    	{ 
    		printf("%s\t", Week[i]);
    	}
    	printf("\n");
    }
    //判断闰/平年
    int is_Leap_Com(int year)
    { 
    	if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
    	{ 
    		return 1;//闰年
    	}
    	else
    		return 0;//平年
    }
    //计算天数
    int Count_Day(int year,int month,int day,int Leap_year[],int Com_year[])
    { 
    	int sum = 0;
    	//计算年天数
    	if (is_Leap_Com(year) == 1)
    	{ 
    		sum += 366;//闰年
    	}
    	else
    		sum += 365;//平年
    	
    	//计算月天数
    	if (is_Leap_Com(year) == 1)
    	{ 
    		for (int i = 1; i <=month; i++)
    		{ 
    			sum += Leap_year[i];//闰月
    		}
    	}
    	else
    	{ 
    		for (int i = 1; i <=month; i++)
    		{ 
    			sum += Com_year[i];//平月
    		}
    	}
    	return sum;
    }
    //打印日历
    void Print_Day(int num, int year, int month)
    { 
    	int result = 0, temp = 0;
    	result = num % 7;//打印空格
    	for (int i = 0; i < result; i++)
    	{ 
    		printf("\t");
    	}
    	temp = 7 - result;//打印除空格外的日历
    	if (is_Leap_Com(year) == 1)
    	{ 
    		for (int i = 1; i <=Leap_year[month]; i++)
    		{ 
    			printf("%d\t", i);
    			if (i == temp || (i - temp) % 7 == 0)//判断是否换行
    				printf("\n");
    		}
    	}
    	else
    	{ 
    		for (int i = 1; i <=Com_year[month]; i++)
    		{ 
    			printf("%d\t", i);
    			if (i == temp || (i - temp) % 7 == 0)
    				printf("\n");
    		}
    	}
    	printf("\n");
    	printf("********************************************************\n");
    }
    int main()
    { 
    	User_Scanf();//用户输入日期
    	Print_Week();//打印星期
    	int num=Count_Day(year,month,day, Leap_year, Com_year);计算天数
    	Print_Day(num,year, month);//打印日历
    	return 0;
    }

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