网页源文件如下:
<div class="page">
<a herf=/top.html <span 上一页 /span>/a>
<span 1 /span>
<a herf=/1.html <span 1 /span>/a>
<a herf=/2.html <span 2 /span>/a>
<a herf=/3.html <span 3 /span>/a>
<span ... /span>
<a herf=/10.html <span 10 /span>/a>
<span 下一页 /span>
/div>
取得div后遍历,用getelementsbytagsname("a")(4).innerhtml、getelementsbytagsname("span")(6).innerhtml和getelementsbytagsname("a")(4).getelementsbytagsname("span")(0).innerhtml均无法取到,请教一下如何获得红色标注的数字?谢谢!