javascript ÖÐcallÓëapplyÇø±ð
1.call·½·¨
¹Ù·½£¨JavaScriptÊֲᣩ£º
µ÷ÓÃÒ»¸ö¶ÔÏóµÄÒ»¸ö·½·¨£¬ÒÔÁíÒ»¸ö¶ÔÏóÌæ»»µ±Ç°¶ÔÏó¡£
call([thisObj[,arg1[,
arg2[, [,.argN]]]]])
²ÎÊý
thisObj ¿ÉÑ¡Ïî¡£½«±»ÓÃ×÷µ±Ç°¶ÔÏóµÄ¶ÔÏó¡£
arg1, arg2, , argN
¿ÉÑ¡Ïî¡£½«±»´«µÝ·½·¨²ÎÊýÐòÁС£
˵Ã÷
call ·½·¨¿ÉÒÔÓÃÀ´´úÌæÁíÒ»¸ö¶ÔÏóµ÷ÓÃÒ»¸ö·½·¨¡£call
·½·¨¿É½«Ò»¸öº¯ÊýµÄ¶ÔÏóÉÏÏÂÎÄ´Ó³õʼµÄÉÏÏÂÎĸıäΪÓÉthisObjÖ¸¶¨µÄжÔÏó¡£
Èç¹ûûÓÐÌṩ thisObj ²ÎÊý£¬ÄÇô Global ¶ÔÏó±»ÓÃ×÷ thisObj¡£
2.apply·½·¨
¹Ù·½£¨JavaScriptÊֲᣩ£º
Ó¦ÓÃijһ¶ÔÏóµÄÒ»¸ö·½·¨£¬ÓÃÁíÒ»¸ö¶ÔÏóÌæ»»µ±Ç°¶ÔÏó¡£
apply([thisObj[,argArray]])
²ÎÊý
thisObj ¿ÉÑ¡Ïî¡£½«±»ÓÃ×÷µ±Ç°¶ÔÏóµÄ¶ÔÏó¡£
argArray ¿ÉÑ¡Ïî¡£½«±»´«µÝ¸ø¸Ãº¯ÊýµÄ²ÎÊýÊý×é¡£
˵Ã÷
Èç¹û argArray ²»ÊÇÒ»¸öÓÐЧµÄÊý×é»òÕß²»ÊÇ arguments ¶ÔÏó£¬ÄÇô½«µ¼ÖÂÒ»¸ö TypeError¡£
Èç¹û
ûÓÐÌṩ argArray ºÍ thisObj ÈκÎÒ»¸ö²ÎÊý£¬ÄÇô Global ¶ÔÏ󽫱»ÓÃ×÷ thisObj£¬ ²¢ÇÒÎÞ·¨±»´«µÝÈκβÎÊý¡£
Á½ÕßµÄÇø±ð£º
Á½
ÕßʵÏֵŦÄÜÊÇÍêȫһÑùµÄ£¬Ö»ÊDzÎÊý´«µÝ·½Ê½²»Ò»Ñù£¬callÊǽ«¸÷¸ö²ÎÊýÒÔ¶ººÅ£¨,£©¸ô¿ª£¬¶øapplyÊǽ«ËùÓвÎÊý×é³ÉÒ»¸öÊý×é½øÐд«µÝ¡£
²Î¿¼´úÂ룺
function fun_one() {
this.a = "I'm string a";
this.b = "I'm string b";
//䶨Òåthis.c£¬µ«µ÷ÓõÄÊÇfun_twoÀïÃæµÄ£¬ËùÒÔ¶¨²»¶¨Òå¶¼ÎÞËùν;
this.fun =
function(p1,p2) {
var s = "this.a: " + this.a + "\nthis.b: " +
this.b + "\nthis.c: " + this.c + "\n\nÆäËü²ÎÊý£º\np1="+p1+"\np2="+p2;
alert(s);
}
}
function fun_two() {
this.b = "I'm other string b";
//䶨Òåthis.a£¬ËùÒÔ·µ»Øundefined
this.c = "I'm string c";
}
var obj1 = new fun_one();
var
obj2 = new fun_two();
/*
&n
Ïà¹ØÎĵµ£º
×¢:Ò³ÃæÉÏÔªËØnameÊôÐÔºÍJavaScriptÒýÓõÄÃû³Æ±ØÐëÒ»Ö°üÀ¨´óСд
·ñÔò»áÌáʾÄãÒ»¸ö´íÎóÐÅÏ¢ "ÒýÓõÄÔªËØÎª¿Õ»òÕß²»ÊǶÔÏó"
---------------------------------------------------------------------
¶ÔÏóÊôÐÔ
document.title ......
ÔÌûµØÖ·£ºhttp://www.followman.com/bbs/Topic-B11-T262.aspx
JavaScript¶¯Ì¬ÏìÓ¦ATLʼþ
Ïà¹ØÌÖÂÛ:http://topic.csdn.net/t/20061012/21/5078729.html
ÖØ
µã£º½Å±¾´«¹ýÀ´µÄ¶ÔÏóÊÇIDispatch½Ó¿Ú£¬Ó¦¸ÃÓÃIDispatch::InvokeÀ´µ÷Óá£Èç¹û´«¹ýÀ´µÄÊǸöfunction£¬ÄÇôDISPID
Ϊ0£¬Èç¹ûÊǸö¶ÔÏó£¬ÄÇôҪÏÈÓÃGetIDsOfNamesµÃ ......
ÐèÒªÁ˽âµÄHTML֪ʶ
±êÇ© table,tr,th,td
ÓÃÑ»·½øÐÐÖØ¸´²Ù×÷
for(;;){}
javascript×Ö·û´®
ÔÚjavascriptÖУ¬µÚÒ»¸ö×Ö·ûÔÚλÖÃ0ÉÏ¡£cat£¬cÔÚλÖÃ0ÉÏ£¬aÔÚλÖÃ1É ......
ºÜ¶àÈ˶¼ÏòÔÚ·þÎñÆ÷
¶Ëµ÷Óÿͻ§¶ËµÄº¯ÊýÀ´²Ù×÷£¬Ò²¾ÍÊÇÔÚaspÖе÷ÓÃjava
script½Å±¾ÖÐÒѾ¶¨ÒåºÃµÄ½Å±¾º¯Êý¡£¾¹ýÑо¿£¬·¢ÏÖÁËһЩÃãÇ¿µÄ·½·¨¡£
1.
ÓÃResponse.Write·½·¨Ð´Èë½Å±¾
±ÈÈçÔÚÄãµ¥»÷°´Å¥ºó£¬ÏȲÙ×÷Êý¾Ý¿â
£¬ÍêÁ˺óÏÔʾÒѾÍê³É£¬¿ÉÒÔÔÚ×îºóÏëµ÷Óõĵط½Ð´ÉÏ
Response.Write("<script type='text/j ......