關(guān)不了呀！！
<!DOCTYPE?html>
<html>
<head>
????<meta?charset="UTF-8">
????<title>javascript</title>
????<script?type="text/javascript">
????????????function?context()
????????????{
????????????????var?mychar="I?love?U!"
????????????alert(mychar);
????????????}
??????????????function?a1(){
?????????????????var?mywin=window.open("http://yifanck.cn"?,'_blank','width=300,height=200,menubar=no,toolbar=no,?status=no,scrollbars=yes');}
?????????????function?a2(){
?????????????????mywin.close();
?????????????????}
????</script>?
</head>
<body>
????<form>
?????<input?type="button"?value="點(diǎn)擊我"?onclick="context()"?/>
?????<br>
??????<input?type="button"?onclick="a1()"?value="打開(kāi)窗口"?/>
????<input?type="button"?onclick="a2()"?value="關(guān)閉窗口"?/>
???</form>
</body>
</html>瀏覽器火狐，打開(kāi)就關(guān)不了
2017-04-22
把mywin提取到方法外面，否則在a2()里面是訪問(wèn)不到a1()的mywin的
2017-06-12
我看了你的代碼 ?提取到外面不好使呀
<html> <head> ????<meta?charset="UTF-8"> ????<title>javascript</title> ????<script?type="text/javascript"> var?mywin=window.open("http://yifanck.cn"?,'_blank','width=300,height=200,menubar=no,toolbar=no,?status=no,scrollbars=yes'); ?????????? ????????????function?context() ????????????{ ????????????????var?mychar="I?love?U!" ????????????alert(mychar); ????????????} ??????????????function?a1(){ ?????????????????mywin.open(); ????????????????????} ?????????????function?a2(){ ?????????????????mywin.close(); ?????????????????} ????</script>? </head> <body> ????<form> ?????<input?type="button"?value="點(diǎn)擊我"?onclick="context()"?/> ?????<br> ??????<input?type="button"?onclick="a1()"?value="打開(kāi)窗口"?/> ????<input?type="button"?onclick="a2()"?value="關(guān)閉窗口"?/> ???</form> </body> </html>