var numDays = { date。 if(d.getFullYear) function getDaysOfMonth(d)Might as well pass the year and month number alone, no need for a fulldate. if (d.getFullYear) 虽然getFullYear很方便,但如果它变好了你也不会更好 即将失踪。只需: --- 函数getDaysOfMonth(年,月){//月== 1是1月 if(year> ; = 0&& year< 100){ 年+ = 100; 月 - = 1200; } 返回新日期(年,月,0).getDate(); } --- 年/月的修正似乎是必要的,否则 功能将在0年失败,因为它(以及 0和99之间的所有其他内容)将有1900添加到今年。然而,0年是闰年的b $ b(根据Javascript的Date对象),而1900 不是。 / L - Lasse Reichstein Nielsen - lr*@hotpop.com DHTML死亡颜色:< URL:http://www.infimum.dk/HTML/rasterTriangleDOM.html> ''没有判断的信仰只会降低精神神圣。'' While getFullYear is convenient, you are no better off if it turnsout to be missing. Just do:---function getDaysOfMonth(year, month) { // month==1 is Januaryif (year >= 0 && year < 100) {year += 100;month -= 1200;}return new Date(year, month, 0).getDate();}---The correction for year/month seems to be necessary, otherwise thefunction will fail for the year 0, as it (and everything else between0 and 99) will have 1900 added to the year. However, the year 0 was aleap year (according to the Javascript the Date object), while 1900wasn''t. /L--Lasse Reichstein Nielsen - lr*@hotpop.comDHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleDOM.html>''Faith without judgement merely degrades the spirit divine.'' JRS:文章< 41 ************** @ PointedEars.de>,日期为Mon ,7月26日 2004 06:28:55,见于新闻:comp.lang.javascript,托马斯''PointedEars'' Lahn< Po **** *****@web.de>发表:JRS: In article <41**************@PointedEars.de>, dated Mon, 26 Jul2004 06:28:55, seen in news:comp.lang.javascript, Thomas ''PointedEars''Lahn <Po*********@web.de> posted : Simon Templar写道: Simon Templar wrote: var numDays = {''1'':31, ''2'':28, var numDays = { ''1'': 31, ''2'': 28, 在闰年,2月有29天。In leap years, February has 29 days. 如果你遇到麻烦在回答之前阅读Sainted的代码, 你会看到他知道这一点;他的代码与朱利安日历,AFAICS完全符合 。 ''3'':31,''4'':30,''5 '':31,''6'':30, If you had troubled to read the Sainted one''s code before responding,you would have seen that he is aware of that; his code fully complieswith the Julian Calendar, AFAICS. ''3'': 31, ''4'': 30, ''5'': 31, ''6'': 30,'''7'':31,''8'':31,''9'':30,''10'' :31,''11'':30,''12'':31 }; 使用日期可以可靠地确定一个月的天数(包括闰年)对象: / ** *返回一个月的天数。 ''7'': 31, ''8'': 31, ''9'': 30, ''10'': 31, ''11'': 30, ''12'': 31 };The number of days a month has can be determined reliably (includingleap years) using Date objects: /** * Returns the number of days of a month. 仅适用于完全格里高利月,当然。 * * @author *(C)2004 Thomas Lahn< da ***** @ PointedEars.de> YCKI。 y = d.getYear(); if(y< 1900) { y + = 1900; } } 在某些系统中不正确。我最近发布了,并且没有人反驳过,这是一个简单而可靠的方法,可以从任何一个可靠的getYear()获得全年。 d2.setDate(0); Only for fully-Gregorian months, of course. * * @author * (C) 2004 Thomas Lahn <da*****@PointedEars.de>YCKI. y = d.getYear(); if (y < 1900) { y += 1900; } }Incorrect in some systems. I have recently posted, and no-one hasrefuted, a brief and reliable means of getting the full year from anyplausible getYear(). d2.setDate(0); Mac NS 4可能出现故障。 这个小组最近的讨论应该已经向你表明了一个更快,更短的方法。 西蒙:见常见问题解答;它间接导致 < URL:http://www.merlyn.demon.co.uk/js-date4.htm#MaYl>其中包含 函数TailOfMonth(y,m){ 如果(m == 1)返回28 +(y%4 == 0)// 1901-2099 返回[31,0,31,30,31,30,31,31,30,31,30,31] [m]} ,就像你已经拥有的一样。在我的系统上,它比我使用日期对象的最佳速度快5 / b 倍,而且这几乎是TL给出的两倍。 所有格里高利年的修改都不应该减慢太多。 BOTF。 - - ?约翰斯托克顿,英国萨里。 [email protected] Turnpike v4.00 IE 4? < URL:http://jibbering.com/faq/> JL / RC:新闻常见问题解答:comp.lang.javascript < URL:http://www.merlyn.demon.co.uk/js-index.htm> jscr数学,日期,来源。 < URL:http://www.merlyn.demon.co.uk/> TP / BP / Delphi / jscr /& c,常见问题项目,链接。 Possible failure in Mac NS 4. Recent discussion in this group should have indicated to you aconsiderably quicker, and shorter, method.Simon : see FAQ; it leads indirectly to<URL:http://www.merlyn.demon.co.uk/js-date4.htm#MaYl> which has function TailOfMonth(y, m) {if (m==1) return 28 + (y%4 == 0) // 1901-2099return [31,0,31,30,31,30, 31,31,30,31,30,31][m] } which is rather like what you already have. On my system, it is about 5times faster than the best I know using a Date Object, and that isnearly twice as fast as one like what TL gave. Modification for all Gregorian years should not slow it much. BOTF. --? John Stockton, Surrey, UK. [email protected] Turnpike v4.00 IE 4 ?<URL:http://jibbering.com/faq/> JL / RC : FAQ for news:comp.lang.javascript<URL:http://www.merlyn.demon.co.uk/js-index.htm> jscr maths, dates, sources.<URL:http://www.merlyn.demon.co.uk/> TP/BP/Delphi/jscr/&c, FAQ items, links. 这篇关于多个datepicker的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 11-01 18:56