Implementation ideas for selecting all and unselecting all check boxes_javascript skills

复制代码 代码如下:

全选/全不选

爱好

看书


听音乐


打球


散步


写代码


<script> <br>window.onload = function(){ <br>var checkItem = document.getElementById("checkItem").onclick = function(){ <br>var itemsElement = document.getElementsByName("item"); <br>for (var i = 0; i < itemsElement.length; i ) { <BR>var itemElement = itemsElement[i]; <BR>if (this.checked) { <BR>itemElement.checked = "checked"; <BR>} <BR>else { <BR>itemElement.checked = null; <BR>} <BR>} <BR>} <BR>} <BR></script>