複選框全選全不選
阿新 • • 發佈:2018-11-27
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script type="text/javascript"> function checkAll() { var checkAllEle = document.getElementById("checkAll"); if (checkAllEle.checked == true) { var checkOnes = document.getElementsByName("checkOne"); for (var i = 0; i < checkOnes.length; i++) { checkOnes[i].checked = true; } } else { var checkOnes = document.getElementsByName("checkOne"); for (var i = 0; i < checkOnes.length; i++) { checkOnes[i].checked = false; } } }; </script> </head> <body> <table border="1" width="500" height="50" align="center"> <thead> <tr> <td colspan="4"><input type="button" value="新增" /> <input type="button" value="刪除" /></td> </tr> <tr> <th><input type="checkbox" onclick="checkAll()" id="checkAll" /></th> <th>編號</th> <th>姓名</th> <th>年齡</th> </tr> </thead> <tbody> <tr> <td><input type="checkbox" name="checkOne" /></td> <td>1</td> <td>張三</td> <td>22</td> </tr> <tr> <td><input type="checkbox" name="checkOne" /></td> <td>2</td> <td>李四</td> <td>25</td> </tr> <tr> <td><input type="checkbox" name="checkOne" /></td> <td>3</td> <td>王五</td> <td>27</td> </tr> <tr> <td><input type="checkbox" name="checkOne" /></td> <td>4</td> <td>趙六</td> <td>29</td> </tr> <tr> <td><input type="checkbox" name="checkOne" /></td> <td>5</td> <td>田七</td> <td>30</td> </tr> <tr> <td><input type="checkbox" name="checkOne" /></td> <td>6</td> <td>汾九</td> <td>20</td> </tr> </tbody> </table> </body> </html>