×ðÁú¿­Ê±

jsÖеĽڵãÊÇʲôÒâ˼

½ÚµãÊÇ javascript ÖÐÌåÏÖ dom Ê÷ÔªËصŤ¾ß£¬Ìṩ²Ù×÷ html ½á¹¹µÄÒªÁìºÍÊôÐÔ¡£½ÚµãÀàÐÍ°üÀ¨ÔªËؽڵ㣨Èç £©¡¢Îı¾½Úµã¡¢×¢ÊͽڵãºÍÎĵµ½Úµã¡£½ÚµãÓµÓÐÊôÐÔ£¨Èç nodename¡¢nodetype¡¢nodevalue£©ºÍÒªÁ죨Èç appendchild()¡¢removechild¡¢clonenode()£©£¬ÓÃÓÚʹÓà dom Ê÷¡£

JS ÖеĽڵã

ʲôÊǽڵ㣿

ÔÚ JavaScript ÖУ¬½ÚµãÊÇÒ»¸öÌåÏÖ DOM Ê÷ÖÐÔªËØµÄ JavaScript ¹¤¾ß¡£ËüÌṩÁËһϵÁÐÒªÁìºÍÊôÐÔ£¬Ê¹¿ª·¢Ö°Ô±Äܹ»Ê¹ÓúÍÐÞ¸ÄÒ³ÃæÉ쵀 HTML ½á¹¹¡£

½ÚµãÀàÐÍ

½ÚµãÓвî±ðµÄÀàÐÍ£¬Ã¿ÖÖÀàÐÍ´ú±í DOM Ê÷ÖÐÔªËصÄÌض¨ÀàÐÍ£º

ÔªËؽڵ㣺ÌåÏÖ HTML ÔªËØ£¬Èç »ò

¡£

Îı¾½Úµã£ºÌåÏÖÔªËØÖ®¼äµÄÎı¾ÄÚÈÝ¡£

×¢Êͽڵ㣺ÌåÏÖ HTML ×¢ÊÍ¡£

Îĵµ½Úµã£ºÌåÏÖÕû¸öÎĵµ¡£

½ÚµãÊôÐÔ

½ÚµãÓµÓÐÐí¶àÊôÐÔ£¬ÓÃÓÚ»ñÈ¡»òÉèÖýڵãµÄÐÅÏ¢£¬°üÀ¨£º

nodeName£º½ÚµãµÄÃû³Æ£¬ÀýÈç “DIV” »ò “#text”¡£

nodeType£º½ÚµãµÄÀàÐÍ£¬Èç 1£¨ÔªËؽڵ㣩¡¢3£¨Îı¾½Úµã£©»ò 8£¨×¢Êͽڵ㣩¡£

nodeValue£º¹ØÓÚÎı¾½Úµã£¬Ëü°üÀ¨Îı¾ÄÚÈÝ £»¹ØÓÚÔªËؽڵ㣬Ëüͨ³£Îª null¡£

childNodes£ºÒ»¸ö°üÀ¨½ÚµãËùÓÐ×Ó½ÚµãµÄÜöÝÍ¡£

parentNode£º¸¸½Úµã¡£

½ÚµãÒªÁì

½Úµã»¹¾ßÓÐÐí¶àÒªÁ죬ÓÃÓÚʹÓà DOM Ê÷£¬°üÀ¨£º

appendChild()£º½«×Ó½Úµã×·¼Óµ½½ÚµãµÄĩβ¡£

insertBefore()£º½«×Ó½Úµã²åÈëµ½ÏÖÓÐ×Ó½Úµã֮ǰ¡£

removeChild()£ºÒƳý×ӽڵ㡣

replaceChild()£ºÓÃÁíÒ»¸ö½ÚµãÌæ»»×ӽڵ㡣

cloneNode()£º½¨Éè½ÚµãµÄ¿Ë¡¡£

hasChildNodes()£º¼ì²é½ÚµãÊÇ·ñ¾ßÓÐÈκÎ×ӽڵ㡣

ÃâÔð˵Ã÷£ºÒÔÉÏչʾÄÚÈÝȪԴÓÚÏàÖúýÌå¡¢ÆóÒµ»ú¹¹¡¢ÍøÓÑÌṩ»òÍøÂçÍøÂçÕûÀí£¬°æȨÕùÒéÓë±¾Õ¾Î޹أ¬ÎÄÕÂÉæ¼°¿´·¨Óë¿´·¨²»´ú±í×ðÁú¿­Ê±ÂËÓÍ»úÍø¹Ù·½Ì¬¶È£¬Çë¶ÁÕß½ö×ö²Î¿¼¡£±¾ÎĽӴýתÔØ£¬×ªÔØÇë˵Ã÷À´ÓÉ¡£ÈôÄúÒÔΪ±¾ÎÄÇÖÕ¼ÁËÄúµÄ°æȨÐÅÏ¢£¬»òÄú·¢Ã÷¸ÃÄÚÈÝÓÐÈκÎÉæ¼°ÓÐÎ¥¹«µÂ¡¢Ã°·¸Ö´·¨µÈÎ¥·¨ÐÅÏ¢£¬ÇëÄúÁ¬Ã¦ÁªÏµ×ðÁú¿­Ê±ÊµÊ±ÐÞÕý»òɾ³ý¡£

Ïà¹ØÐÂÎÅ

ÁªÏµ×ðÁú¿­Ê±

18523999891

¿É΢ÐÅÔÚÏß×Éѯ

ÊÂÇéʱ¼ä£ºÖÜÒ»ÖÁÖÜÎ壬9:30-18:30£¬½ÚãåÈÕÐÝÏ¢

QR code
¡¾ÍøÕ¾µØͼ¡¿¡¾sitemap¡¿