javascript ÔËÐлúÖÆ
ÒÔÏÂÈ«ÊǸöÈËÀí½âÒÔ¼°ÍøÉϲéÕÒ¶øÀ´,ÈçÓ⻶ÔÇëÖ¸Õý...
¼ÙÈçÓÐn¶Îjs´úÂë ÓÃ<script>±êÇ©¸ô¿ªµÄ.
ÔËÐÐ˳ÐòÊÇ
step1. ¶ÁÈëµÚÒ»¸ö´úÂë¶Î
step2. ×öÓï·¨·ÖÎö£¬ÓдíÔò±¨Óï·¨´íÎ󣨱ÈÈçÀ¨ºÅ²»Æ¥ÅäµÈ£©£¬²¢Ìøתµ½step5
step3. ¶Ôvar±äÁ¿ºÍfunction¶¨Òå×ö“Ô¤½âÎö”£¨ÓÀÔ¶²»»á±¨´íµÄ£¬ÒòΪֻ½âÎöÕýÈ·µÄÉùÃ÷£©
step4. Ö´ÐдúÂë¶Î£¬ÓдíÔò±¨´í£¨±ÈÈç±äÁ¿Î´¶¨Ò壩
step5. Èç¹û»¹ÓÐÏÂÒ»¸ö´úÂë¶Î£¬Ôò¶ÁÈëÏÂÒ»¸ö´úÂë¶Î£¬Öظ´step2
step6. ½áÊø
ÕâЩÊÇ´ÓÍøÉÏÕÒµ½µÄ ÖÁÓÚ¶Ô´í ÕæµÄ²»ÖªµÀÈçºÎÑéÖ¤,¾ÍÔÝʱµ±ËüÊÇÕýÈ·µÄ.........
jsÊǽâÊÍÐÍÓïÑÔ,ͨ¹ý´Ê·¨·ÖÎöºÍÓï·¨·ÖÎöµÃµ½Óï·¨Ê÷ºó£¬¾Í¿ÉÒÔ¿ªÊ¼½âÊÍÖ´ÐÐÁË¡£(Óï·¨·ÖÎö ,´Ê·¨·ÖÎöÕâ¸öÎÒҲûÑо¿¹ý)
ÁíÍ⻹ÓÐһЩ¸ÅÄî ÈçÔ¤±àÒë
1. ÔÚÖ´ÐÐÇ°»á½øÐÐÀàËÆ“Ô¤±àÒ딵IJÙ×÷£ºÊ×ÏȻᴴ½¨Ò»¸öµ±Ç°Ö´Ðл·¾³ÏµĻ¶ÔÏ󣬲¢½«ÄÇЩÓÃvarÉêÃ÷µÄ±äÁ¿ÉèÖÃΪ»î¶¯¶ÔÏóµÄÊôÐÔ£¬µ«ÊÇ´ËʱÕâЩ±äÁ¿µÄ¸³Öµ¶¼ÊÇundefined£¬²¢½«ÄÇЩÒÔfunction¶¨ÒåµÄº¯ÊýÒ²Ìí¼ÓΪ»î¶¯¶ÔÏóµÄÊôÐÔ£¬¶øÇÒËüÃǵÄÖµÕýÊǺ¯ÊýµÄ¶¨Òå¡£
2.ÔÚ½âÊÍÖ´Ðн׶Σ¬Óöµ½±äÁ¿ÐèÒª½âÎöʱ£¬»áÊ×ÏÈ´Óµ±Ç°Ö´Ðл·¾³µÄ»î¶¯¶ÔÏóÖвéÕÒ£¬Èç¹ûûÓÐÕÒµ½¶øÇÒ¸ÃÖ´Ðл·¾³µÄÓµÓÐÕßÓÐprototypeÊôÐÔʱÔò»á´ÓprototypeÁ´ÖвéÕÒ£¬·ñÔò½«»á°´ÕÕ×÷ÓÃÓòÁ´²éÕÒ¡£Óöµ½var a = ...ÕâÑùµÄÓï¾äʱ»á¸øÏàÓ¦µÄ±äÁ¿½øÐи³Öµ£¨×¢Ò⣺±äÁ¿µÄ¸³ÖµÊÇÔÚ½âÊÍÖ´Ðн׶ÎÍê³ÉµÄ£¬Èç¹ûÔÚÕâ֮ǰʹÓñäÁ¿£¬ËüµÄÖµ»áÊÇundefined£©
Ô¤±àÒëÓ¦¸ÃÔÚÉÏÃæµÄÄĸö½×¶Î¿ªÊ¼Ö´ÐÐÁË
ÎÒ¾õµÃÓ¦¸ÃÊÇstep3 ÒòΪÊÇÀàËÆ“Ô¤±àÒë”,ʵ¼ÊÉÏÊÇÒѾ¿ªÊ¼Ö´ÐÐÁË.ËùÒÔÓ¦¸ÃÊÇ 3;
¿ÉÒÔ¿´Ò»ÏÂÏÂÃæµÄÀý×Ó
<script>
alert(i);
</script>
»á±¨¸æ´íÎó Ìáʾi䶨Òå
<script>
alert(i);
var i=1;
</script>
»á̸³öundefine
²»»á±¨¸æ´íÎó ¸úÔ¤¶¨ÒåµÄ½âÊÍÒ»Ñù...........
»¹ÓоÍÊÇÔÚ½âÎöµÄʱºò ÓиöÏȺó˳Ðò ÄǾÍÊÇÏȽâÎöº¯Êý ÔÚ½âÎö±äÁ¿
ÇÒ º¯ÊýµÄ×÷ÓÃÓòÊÇÔÚ¶¨ÒåµÄʱºò,¶ø²»ÊÇÖ´ÐÐʱºòµÄ×÷ÓÃÓò
Ò»¸öÀý×Ó
<script>
var c = "123";
function xx(){
alert(c);
var c="xx";
}
xx()
</script>
³öÏÖµÄÊÇundefined
ÒòΪÏȽâÎöµÄxx ËùÒÔÊÇÕÒ²»µ½cµÄ
ÓÖÒòΪ±àÒëµÄ¹Øϵ,ÖªµÀÁËÔÚ xx()ÄÚ²¿ÓÐÒ»¸öc±äÁ¿,ËùÒÔ»áÓÐÒ»¸öundefinedµÄÖ±
ÔÚÔËÐÐxx()µÄʱºò ÒòΪÓÐundefinedµÄÖ±¾Íµ¯
Ïà¹ØÎĵµ£º
ʹÓùýajaxµÄ¶¼³£¼ûÕâÑùµÄ´úÂ룺
<a href="javascript:doTest2();void(0);" mce_href="javascript:doTest2();void(0);">here</a>
µ«Õâ¶ùµÄvoid(0)¾¿¾¹ÊǺκ¬ÒåÄØ£¿
JavascriptÖÐvoidÊÇÒ»¸ö²Ù×÷·û£¬¸Ã²Ù×÷·ûÖ¸¶¨Òª¼ÆËãÒ»¸ö±í´ïʽµ«ÊDz»·µ»ØÖµ¡£
void ²Ù×÷·ûÓ÷¨¸ñʽÈçÏ£º
1. javascript:void (expres ......
1.´´½¨½Úµã²¢Ìí¼ÓÄÚÈÝ:ʹÓõķ½·¨:createElementºÍcreateTextNode
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>HTML DOM</title>
&nbs ......
ÔÚ×Ô¼ºµÄÍøÕ¾ÉϸüÐÂÎÄÕÂʱһ¸ö±È½Ï³£¼ûµÄÎÊÌâÊÇ£ºÎÄÕ²åͼ̫¿í£¬Ê¹Õû¸öÍøÒ³¶¼±äÐÎÁË¡£Èç¹û¶Ôÿ¸ö²åͼ¶¼ÏȽøÐÐËõ·ÅÔÙ²åÈëµÄ»°£¬Ì«Âé·³ÁË¡£
ÎÒÇ°¶Îʱ¼äдµÄһƪÎÄÕ¾ÍÓöµ½¹ýÕâÖÖÊÂÇ飬ºóÀ´ÓÃCSSµÄoverflowºÍmax-widthÊôÐÔÔÝʱ½â¾öÁËÒ³Ãæ±äÐεÄÎÊÌâ¡£ÕâÖÖ·½·¨ºÃ´¦ÊǼòµ¥£¬µ«»µ´¦ÊÇ»áÆÆ»µÄ³Ð©Ï¸½ÚµÄЧ¹û¡£
Èçoverflow£ºhidden ......
¿´Á˺ܶàjavascrip´úÂ룬·¢ÏֺܶàµØ·½Óõ½ÁËthisÕâ¸ö¶ÔÏó£¬ÄÇÕâ¸öµ½µ×ÊÇʲô¶«Î÷°¢£¿
ÏÈÈÃÎÒÃÇÀ´Àí½âÒ»¸ö¸ÅÄ
ÔÚjavascript»áÓÐÒ»¸öÉÏÏÂÎĵĸÅÄÈκÎÒ»¸ö¶ÔÏóÎÞÂÛÊÇObject »¹ÊÇfunction ¶¼»áÓÐÒ»¸öרÓеÄÉÏÏÂÎĶÔÏó£¬Ò²¿ÉÒÔÀí½âΪËü×Ô¼ºµÄÓµÓÐÕß¡£
ÄÇôÎÒÃǺÜÈÝÒ×Ïëµ½Õâ¸öÓµÓÐÕߣ¬±ØÈ»ÓиöÖյ㣬ÄǾÍÊÇwindow¶ÔÏó¡£
......
flex ºÍjavascript»¥Ïàµ÷Óá£
Ò»¡¢flex µ÷ÓÃjavascript
Ö»ÐèʹÓþ²Ì¬µÄExternalInterface.call¾Í¿ÉÒÔÁË¡£
call ·½·¨ÖÁÉÙÒªÇóÒ»¸ö²ÎÊý£¬¾ÍËùµ÷ÓöÊýµÄÃû³Æ¡£
Ò²¿ÉÒÔ´«µÝ²ÎÊý¡£
È磺
ExternalInterface.call("alert","hello");
"hello"¾ÍÊÇ×÷Ϊalertµ ......