<table border="2" > <tr> <th>属性</th> <th>说明</th> <th>类型</th> </tr> <tr> <td>label</td> <td>label的名称，默认“选择日期”</td> <td>String</td> </tr> <tr> <td>text</td> <td>连接符，默认“-”</td> <td>String</td> </tr> <tr> <td>placeh