html控件是否可見和可用的實現

<input id="Button1" type="button" value="這是一個按鈕"><br>
<input type=button οnclick="Button1.style.display='none'" value="不可見">
<input type=button οnclick="Button1.style.display=''" value="可見">
<input type=button οnclick="Button1.disabled=true" value="不可用">
<input type=button οnclick="Button1.disabled=false" value="可用">
<br><br>
<input type=button value="不可用" disabled>
<input type=button value="不可見" style="display='none'">