iframe框架基本用法
main.html
?html_contents.html?frame_a.html<html><body bgcolor="#EBC79E"> <h3>Frame a</h3> </body></html>?
?
html_contents.html
?frame_a.html<html><body bgcolor="#EBC79E"> <h3>Frame a</h3> </body></html>?
frame_a.html
<html><body bgcolor="#EBC79E"> <h3>Frame a</h3> </body></html>
