index.html:73 Uncaught TypeError: Cannot read property 'getElementsByTagName' of null
? ?at window.onload (index.html:73)？按照老師的的寫法,出現(xiàn)上面的錯誤提示<script>? ?function $(id){? ? ? return typeof id==='string'?document.getElementById(id):id;? ?}? ?window.onload=function(){? ? ? var titles=$('notice-tit').getElementsByTagName('li');<script>
搞不懂?為什么會這樣？
qq_果汁分ni半_03462240
2017-05-07 15:23:36