使用JS实现年月日下拉列表的选择
如下图：
具体操作：
两个js文件，设置效果
在.html中导入两个外部js文件
jquery.time.js
$(function () {$.ms_DatePicker({ YearSelector: ".sel_year", MonthSelector: ".sel_month", DaySelector: ".sel_day" });});birthday.js
(function($){$.extend({ms_DatePicker: function (options) { var defaults = { YearSelector: "#sel_year", MonthSelector: "#sel_month", DaySelector: "#sel_day", FirstText: "--", FirstValue: 0 }; var opts = $.extend({}, default飞艇7码滚雪球技巧ar defaults = { YearSelector: "#sel_year", MonthSelector: "#sel_month", DaySelector: "#sel_day", FirstText: "--", FirstValue: 0 }; var opts = $.extend({}, defaults, options); var $YearSelector = $(opts.YearSelector); var $MonthSelector = $(opts.MonthSelector); var $DaySelector = $(opts.DaySelector); var FirstText = opts.FirstText; var FirstValue = opts.FirstValue; // 初始化 var str = "<option value="" + FirstValue + "">"+FirstText+"</option>"; $YearSelector.html(str); $MonthSelector.html(str); $DaySelector.html(str); // 年份列表 var yearNow = new Date().getFullYear(); var yearSel = $YearSelector.attr("rel"); for (var i = yearNow; i >= 1900; i--) {var sed = yearSel==i?"selected":"";var yearStr = "<option value="" + i + "" " + sed+">"+i+"</option>"; $YearSelector.append(yearStr); } // 月份列表var monthSel = $MonthSelector.attr("rel"); for (var i = 1; i <= 12; i++) {var sed = monthSel==i?"selected":""; var monthStr = "<option value="" + i + "" "+sed+">"+i+"</option>"; $MonthSelector.append(monthStr); } // 日列表(仅当选择了年月) function BuildDay() { if ($YearSelector.val() == 0 || $MonthSelector.val() == 0) { // 未选择年份或者月份 $DaySelector.html(str); } else { $DaySelector.html(str); var year = parseInt($YearSelector.val()); var month = parseInt($MonthSelector.val()); var dayCount = 0; switch (month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: dayCount = 31; break; case 4: case 6: case 9: case 11: dayCount = 30; break; case 2: dayCount = 28; if ((year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0)) { dayCount = 29; } break; default: break; }var daySel = $DaySelector.attr("rel"); for (var i = 1; i <= dayCount; i++) {var sed = daySel==i?"selected":"";var dayStr = "<option value="" + i + "" "+sed+">" + i + "</option>"; $DaySelector.append(dayStr); } } } $MonthSelector.change(function () { BuildDay(); }); $YearSelector.change(function () { BuildDay(); }); if($DaySelector.attr("rel")!=""){ BuildDay(); } } // End ms_DatePicker});})(jQuery);在.html文件的head内导入script
<script type="text/javascript" src="js/jquery.time.js"></script><script type="text/javascript" src="js/birthday.js"></script>主体部分的年月日组件代码
<select class="sel_year" name="YYYY"><option value="">请选择</option></select><font>年</font><select class="sel_month" name="MM"><option value="">请选择</option></select><font>月</font><select class="sel_day" name="DD"><option value="">请选择</option></select><font>日</font>