1. select 默认选中:
<select name="skills" multiple="true">
<option value="Potions">Potions</option>
- <option value="Herbology" selected="selected">Herbology</option>
<option value="Quidditch">Quidditch</option>
- </select>
2. jquery 去除空格:$.trim(
" 你好,开源中国社区 "
);
时间: 2024-08-24 15:33:08