<select>我嘗試默認隱藏，當我點擊Edit按鈕時我想顯示它。但它沒有按預期工作。請在下面找到我的代碼。<!DOCTYPE html><html><head><script> function update_country() { if(document.getElementById("Editbtn").value == 'Edit'){ document.getElementById("country").style.display = 'none'; document.getElementById("Editbtn").value = "Update"; document.getElementById("countries").style.visible = 'true'; } }</script><style>table { font-family: arial, sans-serif; border-collapse: collapse; width: 100%;}td, th { border: 1px solid #dddddd; text-align: left; padding: 8px;}tr:nth-child(even) { background-color: #dddddd;}</style></head><body><h2>HTML Table</h2><table> <tr> <th>Company</th> <th>Contact</th> <th>Country</th> </tr> <tr> <td>Alfreds Futterkiste</td> <td>Maria Anders</td> <td id="country">Germany</td> <td id="countryOption" visible =false> <select name="countries" id="countries" > <option value="Germany">Germany</option> <option value="India">India</option> <option value="France">France</option> <option value="Italy">Italy</option> </select> <input id="Editbtn" type="button" value="Edit" onclick="update_country()"> </td> </tr> </table></body></html>Am trying to modify `Country` column by click on the `edit` button. once i clicked on edit button existing `<td>` tag should be hidden and `select>` tag should be visible to select other country and update the column by clicking on the `udpate` button
Html <select> 想要默認隱藏并啟用按鈕操作
SMILET
2023-03-10 14:51:02
