开始试着在#form里边写onclick，添加 WdatePicker({minDate: '#F{$dp.$D(\'startDate_lte\',{M:-1})}'}),结果不起作用，还导致日期控件无法选择，最后分开到js中加入click事件，可以了

html代码：

<div class="control-inline">
   <#form:input path="startDate_gte" id="startDate_gte" readonly="true" maxlength="20" class="form-control Wdate-datetime"
         dataFormat="datetime"  />
   &nbsp;--&nbsp;
   <#form:input path="startDate_lte" id="startDate_lte" readonly="true" maxlength="20" class="form-control Wdate-datetime"
         dataFormat="datetime" />
</div>

js代码：

$("#startDate_gte").click(function () {
    WdatePicker({
        name:'zh-cn',
        charset:'UTF-8',
        dateFmt: 'yyyy-MM-dd HH:mm',
        minDate: '#F{$dp.$D(\'startDate_lte\',{M:-1})}',
        maxDate: '#F{$dp.$D(\'startDate_lte\')||\'%y-%M-%d\'}',
        isShowClear:false,
        readOnly: true
    })
})
$("#startDate_lte").click(function () {
    WdatePicker({
        name:'zh-cn',
        charset:'UTF-8',
        dateFmt: 'yyyy-MM-dd HH:mm',
        minDate: '#F{$dp.$D(\'startDate_gte\')}',
        maxDate: '#F{$dp.$D(\'startDate_gte\',{M:1})}',
        isShowClear:false,
        readOnly: true

    })
})