title 屬性設(shè)置或返回元素的咨詢標(biāo)題。
HTMLElementObject.title=title
IE | Firefox | Chrome | Safari | Opera |
---|---|---|---|---|
所有主流瀏覽器均支持 title 屬性。
返回 body 元素的 title 屬性:
<html> <body id="myid" title="mytitle"> <script> var x=document.getElementsByTagName('body')[0]; document.write("Body title: " + x.title); document.write("<br>"); document.write("替代方法:"); document.write(document.getElementById('myid').title); </script> </body> </html>
輸出:
Body title: mytitle 替代方法:mytitle
返回圖像映射中某個(gè)區(qū)域的咨詢標(biāo)題:
<html> <body> <img src ="planets.gif" width="145" height="126" alt="Planets" usemap ="#planetmap"> <map name ="planetmap"> <area id="venus" shape="circle" coords ="124,58,8" title="Venus" href ="venus.htm"> </map> <p>Venus' advisory title (mouse over the Venus planet): <script> var x=document.getElementById('venus') document.write(x.title) </script> </p> </body> </html>
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