<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>無標題文檔</title><script type="text/javascript">?var H=document.body.scrollHeight;?var h=document.body.clientHeight;document.write(H+"<br/>"+h)</script></head><body></body></html>很奇怪。JS這段代碼放在BODY中有效果。放在hrad中卻無效。什么原因呢？
關于JS擺放位置
朝花bu夕拾
2016-09-01 12:20:43
