本文转载自：http://blog.csdn.net/feng1603/article/details/41869523
直接上代码：
//选择年月日的 startView: 2, minView: 2, format: 'yyyymmdd',
$('#datetimepicker').datetimepicker({
format: 'yyyymmdd',
weekStart: 1,
autoclose: true,
startView: 2,
minView: 2,
forceParse: false,
language: 'zh-CN'
});
//选择年月的 startView: 3, minView: 3, format: 'yyyymm',
$('#datetimepicker').datetimepicker({
format: 'yyyymm',
weekStart: 1,
autoclose: true,
startView: 3,
minView: 3,
forceParse: false,
language: 'zh-CN'
});
//选择年的 startView: 4, minView: 4, format: 'yyyy',
$('#datetimepicker').datetimepicker({
format: 'yyyymm',
weekStart: 1,
autoclose: true,
startView: 4,
minView: 4,
forceParse: false,
language: 'zh-CN'
});
<div class="col-md-7">
<div class='input-group date form_date' >
<input name="startTm" id="datetimepicker" type='text' class="form-control input-sm" readonly="readonly"/>
<span class="input-group-addon input-sm">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
在这里遇到很多问题：什么日历图标没反映啊，输入框和日历图标对不齐啊，点日历图标把数据清了啊……都是样式问题，所以提供几种样式，一种一种试吧……博大精深啊……
<div class='input-group date form_date' data-date-format="yyyymmdd">
<input name="startTm" id="startTm" type='text' class="form-control input-sm" readonly="readonly"/>
<span class="input-group-addon input-sm">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
<div class="date input-append" id="datetimepicker">
<div class="input-group">
<input class="form-control input-sm" readonly="readonly" type="text">
<span class="add-on input-group-addon"><i class="icon-remove"></i></span>
<span class="add-on input-group-addon"><i class="icon-th"></i></span></div>
</div>