1.input的disabled
enter your name:<input disabled></input>
2.hidden是个全局布尔属性,可以应用于任何元素.
<table> <tr><th>Name</th><th>City</th></tr> <tr><td>Adam</td><td>London</td></tr> <tr id="toggle" hidden><td>Joe</td><td>New York</td></tr> <tr><td>Jones</td><td>Paries</td></tr> </table>