教材上說：alert(opener.name)可以獲得父窗口的名字。cat father.html<!DOCTYPE html><html lang="en"><head>
<meta charset="UTF-8">
<title></title></head><body>
<script>
window.open('file:///tmp/child.html'); </script></body><p>i am father window</p></html>cat child.html<!DOCTYPE html><html lang="en"><head>
<meta charset="UTF-8">
<title></title>
<script>
alert(opener.name); </script></head><body>
<p>i am child window</p></body></html>瀏覽器中輸入 file:///tmp/father.html ，child.html也會打開，但是為何沒有alert窗口打開？
alert(opener.name)為何沒有結(jié)果？
交互式愛情
2018-08-26 09:57:51
