Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

JavaScript¶¯Ì¬Ìí¼ÓDOMÔªËØ×ܽá

ÕâÁ½Ì쿪ʼд¹Å´úµØͼµÄGISÍøÕ¾£¬Ëµ°×Á˾ÍÊÇÓùŴúµØͼµÄÄÚÈÝЧ·ÂɽկһϹȸèµØͼ¡£
JSÕⶫÎ÷ºÜ¾ÃûдÁË£¬ÓÐЩ¸ÅÄîÒ²ºÜÄ£ºý£¬µ¼ÖÂÍê³É·Ö¿éÍ϶¯¼ÓÔصŦÄܾͻ¨Á˺öàʱ¼ä¡£
Ö÷ÒªÎÊÌâÊdzöÔÚÍ϶¯Ê±¶ÔÔªËØÄÚÈݵĶ¯Ì¬ÐÞ¸ÄÉÏ£¬×ܽáÏ¡£
ͨ¹ýJS½Å±¾¶¯Ì¬ÐÞ¸ÄDOMÔªËØÄÚÈÝͨ³£ÓÐÁ½ÖÖ·½·¨£º
1. ͨ¹ýDOM±ê×¼½Ó¿Ú´´½¨ÔªËØ
var newNode = document.createElement("div");
mapDiv.insertBefore(newNode, mapDiv.getElementsByTagName("div")[0]); 
2. ͨ¹ýÐÞ¸ÄÔªËصÄinnerHTMLÊôÐÔÀ´¸Ä±äÄÚÈÝ
mapDiv.innerHtml += "<div class='piece' style='top:"+(i*256+parseInt(blockArray[0][0].style.top))+"px; left:"+(parseInt(blockArray[0][0].style.left)-256)+"px; background-image:url(\"assets/full_map/x="+x+"&y="+(y+i>15?y+i-16:y+i)+"&z=4.png\")'></div>";
 
Á½ÖÖ·½·¨¶¼¿ÉÒԸıäÔªËصÄÄÚÈÝ£¬µ«ÊÇÂÔÓв»Í¬¡£
ÐÞ¸ÄinnerHTMLÊôÐԵĻ°£¬ÏµÍ³»á¶ÔÄÚÈݽøÐÐÖع¹£¬ÖØÐÂÉú³ÉDOMÔªËØ£¨ÐµĵØÖ·£©£¬¼´Ê¹Ö»ÊÇÔÚ×îºó×·¼ÓÁËÒ»¸öÔªËØ£¬¶øDOM API²Ù×÷Ôò²»»á¡£
¾Ù¸öÀý×Ó£¬ÓÃÊý×é±£´æDIV1ÖеÄËùÓÐÔªËØ(subDiv1, subDiv2, subDiv3.......)µ±ÐÞ¸ÄinnerHTML×·¼ÓÒ»¸ösubDivnµÄʱºò£¬×·¼ÓÍêµÄDOMÔªËØÓëÊý×éÖеIJ»ÔÙ¶ÔÓ¦ÁË£¬ÒòΪÖØлæÖÆÁË£¬ÔªËØÓÐÁËеĵØÖ·£¨Êý×é´æµÄ½ö½öÊǵØÖ·£©¡£¶øDiv1.appendChild(subDivn)Ö®ºó£¬Êý×éÓëÄÚ²¿ÔªËØÈÔÈ»±£³Ö¶ÔÓ¦¹Øϵ¡£
ËÙ¶ÈÉÏÀ´ËµµÄ»°DOM½Ó¿ÚµÄËٶȻáÏà¶Ô½ÏÂý£¬¶øÐÞ¸ÄinnerHTML»òÕßÊÇwrite()·½·¨»áÃ÷ÏԽϿ졣


Ïà¹ØÎĵµ£º

ת JavaScriptµ÷ÓÃWebServices(ʹÓÃWebService.htc)

.XML Web services ÐÐΪʹ¿Í»§¶Ë½Å±¾Äܹ»µ÷ÓÃÓÉ Microsoft .NET XML Web services »òÆäËûÖ§³Ö¼òµ¥¶ÔÏó·ÃÎÊЭÒé (SOAP) µÄ Web ·þÎñÆ÷¹«¿ªµÄÔ¶³Ì·½·¨¡£
Ä¿µÄ£ºÌṩһÖÖ¼òµ¥µÄ·½·¨Ê¹ÓúÍÀûÓà SOAP£¬¶ø²»Ðè¾ßÓÐ SOAP ʵÏÖµÄרҵ֪ʶ¡£
²½Ö裺
1.ÏÂÔØWebservice.htc,Ðí¶àÍøÉϵÄÎÄÕ½éÉܸÃÎļþ¿ÉÒÔÔÚ΢ÈíµÄÍøÕ¾ÉÏÕÒµ½£¬µ«ÎÒ°´ ......

javascriptÖжÔÖÐÎĽøÐбàÂë½âÂëµÄ·½Ê½

ÖÐÎıàÂ룺
 function upload() {
  var form = document.getElementById('topic');
  if ($('uploadfile').value == "") {
   alert("ÇëÑ¡ÔñÎļþ£¡");
   return;
  } 
  $('uploadfile').value = escape($('uploadfile').value) ......

JavaScript toFixed() ·½·¨

±¾ÎÄת×Ô£ºhttp://www.w3school.com.cn/js/jsref_tofixed.asp
¶¨ÒåºÍÓ÷¨
toFixed() ·½·¨¿É°Ñ Number ËÄÉáÎåÈëΪָ¶¨Ð¡ÊýλÊýµÄÊý×Ö¡£
Óï·¨
NumberObject.toFixed(num) 
²ÎÊýnumÃèÊö±ØÐè¡£¹æ¶¨Ð¡ÊýµÄλÊý£¬ÊÇ 0 ~ 20 Ö®¼äµÄÖµ£¬°üÀ¨ 0 ºÍ 20£¬ÓÐЩʵÏÖ¿ÉÒÔÖ§³Ö¸ü´óµÄÊýÖµ·¶Î§¡£Èç¹ûÊ¡ÂÔÁ˸òÎÊý£¬½«Óà 0 ´úÌæ¡£
......

400¶à¸öJavaScriptÌØЧ´óÈ«

400¶à¸öJavaScriptÌØЧ´óÈ«£¬°üº¬È«²¿Ô´´úÂëºÍÏêϸ´úÂë˵Ã÷£¬²»¿É¶àµÃ
JavaScriptʵÏÖ¿ÉÒÔÍêÈ«×ÔÓÉÍÏקµÄЧ¹û£¬´øÈý¸ö·¶Àý     http://www.sharejs.com/showdetail-501.aspx 
javascriptʵÏÖ¿ÉÒÔ×ÔÓÉÍ϶¯µÄÊ÷ÐÎÁÐ±í     http://www.sharejs.com/showdetail-500.aspx  ......

javascriptÀïµÄdocument.allÓ÷¨

1
¡¢Àí½âdocument.all
[]
¡¡¡¡´ÓIE4¿ªÊ¼IEµÄobject
model²ÅÔö¼ÓÁËdocument.all
[],À´¿´¿´document.all
[]µÄDescription:
Array
of all HTML tags in the document.Collection of all elements contained by the
object.
¡¡¡¡Ò²¾ÍÊÇ˵document.all
[]ÊÇÎĵµÖÐËùÓбêÇ©×é³ÉµÄÒ»¸öÊý×é±äÁ¿£¬°üÀ¨ÁËÎĵµ¶ÔÏóÖÐËùÓ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ