javascript ʼþ¿Ø¹Ü問題?
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¼Ù設ÎÒÓÐ10個圖ÐÎÒªÔÚ網頁ÉÏÄÜ夠×ÔÓɵر»ÍÏÒ·ÒÆ動. ÎÒ試ÁË兩種·½·¨ÈçÏÂ. ÎÒÏë請問為ºÎ兩種·½Ê½ÔÚ»¬ÊóÍÏÒ·圖Ƭ時µÄЧÄÜ會²î這麼¶à? ·½·¨1µÄЧÄܱȷ½·¨2²î許¶à, ²»Öª問題³öÔÚÄÄ? 請幫幫æ, Ö¸½Ì¸ü¾«簡¸üÓÐЧÂʵÄ×ö·¨. 謝謝!!
1. 設¶¨ºÃaddEventHandler, 這10個圖Ðζ¼È¥ºô½ÐËü, shareͬһ個mousedown, mouseup, mousemove. ÓÃtarget.addEventListener來觸發ʼþº¯Ê½.
problem: »¬ÊóÖ»ÄÜÂýÂýÒÆ動, ·ñ則圖ÐÎ來²»¼°偵測mouseup¶ø³ö現圖ÐÎ亂飄(應該ÊÇÒò為mousemoveµÄlistenerÈÔÔÚ×÷ÓÃ).
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for(var i=0;i <GroupID02.childNodes.length;i++){
if(GroupID02.childNodes[i].id){
addEventHandler(GroupID02.childNodes[i],"mousedown",mousedown_listener);
}
}
function addEventHandler(target, type, func) {
if (target.addEventListener)
target.addEventListener(type, func, true);
else if (target.attachEvent)
target.attachEvent("on" + type, func);
else target["on"
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