jQuery UI 实例讲解 - 日期选择器(Datepicker)

BlogbyHarisHa

2019-05-06

默认功能

日期选择器（Datepicker）绑定到一个标准的表单 input 字段上。把焦点移到 input 上（点击或者使用 tab 键），在一个小的覆盖层上打开一个交互日历。选择一个日期，点击页面上的任意地方（输入框即失去焦点），或者点击 Esc 键来关闭。如果选择了一个日期，则反馈显示为 input 的值。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 默认功能</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker(); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

动画

当打开或关闭 datepicker 时使用不同的动画。从下拉框中选择一个动画，然后在输入框中点击来查看它的效果。您可以使用三个标准动画中任意一个，或者使用 UI 特效中的任意一个。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 动画</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
  $( "#datepicker" ).datepicker(); 
  $( "#anim" ).change(function() { 
   $( "#datepicker" ).datepicker( "option", "showAnim", $( this ).val() ); 
  }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker" size="30"></p> 
 
<p>动画：<br> 
 <select id="anim"> 
  <option value="show">Show (默认)</option> 
  <option value="slideDown">滑下</option> 
  <option value="fadeIn">淡入</option> 
  <option value="blind">Blind (UI 百叶窗特效)</option> 
  <option value="bounce">Bounce (UI 反弹特效)</option> 
  <option value="clip">Clip (UI 剪辑特效)</option> 
  <option value="drop">Drop (UI 降落特效)</option> 
  <option value="fold">Fold (UI 折叠特效)</option> 
  <option value="slide">Slide (UI 滑动特效)</option> 
  <option value="">无</option> 
 </select> 
</p> 
 
 
</body> 
</html>

其他月份的日期

datepicker 可以显示其他月份的日期，这些日期也可以设置成可选择的。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 其他月份的日期</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  showOtherMonths: true, 
  selectOtherMonths: true
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

显示按钮栏

通过布尔值的 showButtonPanel 选项为选择当天日期显示一个"Today"按钮，为关闭日历显示一个"Done"按钮。默认情况下，当按钮栏显示时会启用每个按钮，但是按钮可通过其他的选项进行关闭。按钮文本可自定义。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 显示按钮栏</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  showButtonPanel: true
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

内联显示

datepicker 是嵌套在页面中显示，而不是显示在一个覆盖层中。只需要简单地在 div 上调用 .datepicker() 即可，而不是在 input 上调用。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 内联显示</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker(); 
 }); 
 </script> 
</head> 
<body> 
 
日期：<div id="datepicker"></div> 
 
 
</body> 
</html>

显示月份 & 年份菜单

显示月份和年份的下拉框，而不是显示静态的月份/年份标题，这样便于在大范围的时间跨度上导航。添加布尔值 changeMonth和 changeYear 选项即可。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 显示月份 & 年份菜单</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  changeMonth: true, 
  changeYear: true
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

显示多个月份

设置 numberOfMonths 选项为一个整数 2，或者大于 2 的整数，来在一个 datepicker 中显示多个月份。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 显示多个月份</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  numberOfMonths: 3, 
  showButtonPanel: true
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

格式化日期

以各种方式显示日期反馈。从下拉框中选择一种日期格式，然后在输入框中点击并选择一个日期，查看所选格式的日期显示。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 格式化日期</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker(); 
 $( "#format" ).change(function() { 
  $( "#datepicker" ).datepicker( "option", "dateFormat", $( this ).val() ); 
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker" size="30"></p> 
 
<p>格式选项：<br> 
 <select id="format"> 
 <option value="mm/dd/yy">Default - mm/dd/yy</option> 
 <option value="yy-mm-dd">ISO 8601 - yy-mm-dd</option> 
 <option value="d M, y">Short - d M, y</option> 
 <option value="d MM, y">Medium - d MM, y</option> 
 <option value="DD, d MM, yy">Full - DD, d MM, yy</option> 
 <option value="'day' d 'of' MM 'in the year' yy">With text - 'day' d 'of' MM 'in the year' yy</option> 
 </select> 
</p> 
 
 
</body> 
</html>

图标触发器

点击输入框旁边的图标来显示 datepicker。设置 datepicker 在获得焦点时打开（默认行为），或者在点击图标时打开，或者在获得焦点/点击图标时打开。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 图标触发器</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  showOn: "button", 
  buttonImage: "images/calendar.gif", 
  buttonImageOnly: true
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

本地化日历

本地化 datepicker 日历语言和格式（默认为 English / Western 格式）。datepicker 包含对从右到左读取的语言的内建支持，比如 Arabic 和 Hebrew。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 本地化日历</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <script src="http://jqueryui.com/resources/demos/datepicker/jquery.ui.datepicker-ar.js"></script> 
 <script src="http://jqueryui.com/resources/demos/datepicker/jquery.ui.datepicker-fr.js"></script> 
 <script src="http://jqueryui.com/resources/demos/datepicker/jquery.ui.datepicker-he.js"></script> 
 <script src="http://jqueryui.com/resources/demos/datepicker/jquery.ui.datepicker-zh-TW.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker( $.datepicker.regional[ "fr" ] ); 
 $( "#locale" ).change(function() { 
  $( "#datepicker" ).datepicker( "option", 
  $.datepicker.regional[ $( this ).val() ] ); 
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"> 
 <select id="locale"> 
 <option value="ar">Arabic (?(???????</option> 
 <option value="zh-TW">Chinese Traditional (繁w中文)</option> 
 <option value="">English</option> 
 <option value="fr" selected="selected">French (Fran?ais)</option> 
 <option value="he">Hebrew (?(?????</option> 
 </select></p> 
 
 
</body> 
</html>

填充另一个输入框

使用 altField 和 altFormat 选项，无论何时选择日期，会在另一个输入框中填充带有一定格式的日期。这个功能通过对电脑友好性的日期进一步加工后，向用户呈现一个用户友好性的日期。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 填充另一个输入框</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  altField: "#alternate", 
  altFormat: "DD, d MM, yy"
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"> <input type="text" id="alternate" size="30"></p> 
 
 
</body> 
</html>

限制日期范围

通过 minDate 和 maxDate 选项限制可选择的日期范围。设置起止日期为实际的日期（new Date(2009, 1 - 1, 26)），或者为与今天的一个数值偏移（-20），或者为一个周期和单位的字符串（'+1M +10D'）。如果设置为字符串，使用 'D' 表示天，使用 'W' 表示周，使用 'M' 表示月，使用 'Y' 表示年。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 限制日期范围</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ minDate: -20, maxDate: "+1M +10D" }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

选择一个日期范围

选择要搜索的日期范围。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 选择一个日期范围</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#from" ).datepicker({ 
  defaultDate: "+1w", 
  changeMonth: true, 
  numberOfMonths: 3, 
  onClose: function( selectedDate ) { 
  $( "#to" ).datepicker( "option", "minDate", selectedDate ); 
  } 
 }); 
 $( "#to" ).datepicker({ 
  defaultDate: "+1w", 
  changeMonth: true, 
  numberOfMonths: 3, 
  onClose: function( selectedDate ) { 
  $( "#from" ).datepicker( "option", "maxDate", selectedDate ); 
  } 
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<label for="from">从</label> 
<input type="text" id="from" name="from"> 
<label for="to">到</label> 
<input type="text" id="to" name="to"> 
 
 
</body> 
</html>

显示一年中的第几周

datepicker 可以显示一年中的第几周。默认的计算是按照 ISO 8601 定义：每周从星期一开始，每年的第一周包含该年的第一个星期四。这就意味着一年中的一些天可能是属于另一年中的周。

<!doctype html> 
<html lang="en"> 
<head> 
 <meta charset="utf-8"> 
 <title>jQuery UI 日期选择器（Datepicker） - 显示一年中的第几周</title> 
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script src="//code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> 
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > 
 <script> 
 $(function() { 
 $( "#datepicker" ).datepicker({ 
  showWeek: true, 
  firstDay: 1 
 }); 
 }); 
 </script> 
</head> 
<body> 
 
<p>日期：<input type="text" id="datepicker"></p> 
 
 
</body> 
</html>

jQuery的datepicker变成中文:jquery.ui.datepicker-zh-CN.js一般会找这个js,我把这个js的代码拿出来，以后就不需要再在网上找啦:

jQuery(function($){ 
 $.datepicker.regional['zh-CN'] = { 
  closeText: '关闭', 
  prevText: '<上月', 
  nextText: '下月>', 
  currentText: '今天', 
  monthNames: ['一月','二月','三月','四月','五月','六月', 
  '七月','八月','九月','十月','十一月','十二月'], 
  monthNamesShort: ['一','二','三','四','五','六', 
  '七','八','九','十','十一','十二'], 
  dayNames: ['星期日','星期一','星期二','星期三','星期四','星期五','星期六'], 
  dayNamesShort: ['周日','周一','周二','周三','周四','周五','周六'], 
  dayNamesMin: ['日','一','二','三','四','五','六'], 
  weekHeader: '周', 
  dateFormat: 'yy-mm-dd', 
  firstDay: 1, 
  isRTL: false, 
  showMonthAfterYear: true, 
  yearSuffix: '年'}; 
 $.datepicker.setDefaults($.datepicker.regional['zh-CN']); 
});

datepicker jquery jquery选择器

安科网

jQuery UI 实例讲解 - 日期选择器(Datepicker)

BlogbyHarisHa

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