43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
function getCookie(name) {
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var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
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if (arr = document.cookie.match(reg))
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return unescape(arr[2]);
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else
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return null;
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}
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function getLoginUrl() {
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var LoginUrl = getCookie("LoginUrl");
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if (!LoginUrl) {
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LoginUrl = "/Login/Index";
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}
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return LoginUrl;
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}
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function getWeek(str) {
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let day = Date.parse(str);
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//如果不是当年的第一天不是星期一，则该日所属周数为上一年的最后一周
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day = new Date(day);
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if (day.getDay() !== 1) {
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day = day.getTime() - 24 * 60 * 60 * 1000
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day = new Date(day);
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}
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day.setMonth(0);
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day.setDate(1);
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day.setHours(0);
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day.setMinutes(0);
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day.setSeconds(0);//到这里就得到该年的一月一日
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let today = Date.parse(str);
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today = new Date(today);
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let todayWeek = today.getDay()
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//计算日期是一年中的第几天
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let rankDay = Math.ceil((today.getTime() - day.getTime()) / (1000 * 24 * 60 * 60))
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let rankWeek = Math.ceil(rankDay / 7)
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rankWeek = rankWeek < 10 ? ("0" + rankWeek) : rankWeek
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let year = day.getFullYear().toString()
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return year + "年第" + rankWeek + "周";
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} |