输入日期数日子

FAN_1999

于 2020-12-06 10:58:05 发布

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分类专栏： c语言文章标签： c语言

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int day_of_year(int year, int month, int day){
	int i, leap;//leap是否为闰年
	int tab[2][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}
	};
	leap = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
	for (i = 1; i < month; i++){
		day = day + tab[leap][i];
	}//for
	return day;
}//day_of_year