w TypeError : Cannot set property 'innerHTML' of nullTypeError : Cannot set property 'value' of null通过id或其他部分属性查找元素改变页面值时,如在点击中event.target.getAttribute('id'),event.target.getAttribute('wattr'),出现此类错误原因:0-dom中无此id或相应的wattr1-dom中有此id或相应的wattr 但都是在js代码
<? $bclassid = $class_r[$GLOBALS[navclassid]][bclassid]; //获取当前父栏目ID ?> [e:loop={"select classid,classname,classpath from [!db.pre!]enewsclass where bclassid = ‘$bclassid’ order by classid”,0,24,0}]<!-取得父栏目下的子栏目-> <li><a href=”&l