JavaScript ½âÎö JSON Êý¾Ý
JSON £¨JavaScript Object Notation£©Ò»ÖÖ¼òµ¥µÄÊý¾Ý¸ñʽ£¬±Èxml¸üÇáÇÉ¡£ JSON ÊÇ JavaScript ÔÉú¸ñʽ£¬ÕâÒâζ×ÅÔÚ JavaScript Öд¦Àí JSON Êý¾Ý²»ÐèÒªÈκÎÌØÊâµÄ API »ò¹¤¾ß°ü¡£
JSONµÄ¹æÔòºÜ¼òµ¥£º ¶ÔÏóÊÇÒ»¸öÎÞÐòµÄ“‘Ãû³Æ/Öµ’¶Ô”¼¯ºÏ¡£Ò»¸ö¶ÔÏóÒÔ“{”£¨×óÀ¨ºÅ£©¿ªÊ¼£¬“}”£¨ÓÒÀ¨ºÅ£©½áÊø¡£Ã¿¸ö“Ãû³Æ”ºó¸úÒ»¸ö“:”£¨Ã°ºÅ£©£»“‘Ãû³Æ/Öµ’ ¶Ô”Ö®¼äʹÓÓ,”£¨¶ººÅ£©·Ö¸ô¡£¾ßÌåϸ½Ú²Î¿¼http://www.json.org/json-zh.html
¾Ù¸ö¼òµ¥µÄÀý×Ó£º
js ´úÂë
function showJSON() {
var user =
{
"username":"andy",
"age":20,
"info": { "tel": "123456", "cellphone": "98765"},
"address":
[
{"city":"beijing","postcode":"222333"},
{"city":"newyork","postcode":"555666"}
]
}
alert(user.username);
alert(user.age);
alert(user.info.cellphone);
alert(user.address[0].city);
alert(user.address[0].postcode);
}
Õâ±íʾһ¸öuser¶ÔÏó£¬ÓµÓÐusername, age, info, address µÈÊôÐÔ¡£
ͬÑùÒ²¿ÉÒÔÓÃJSONÀ´¼òµ¥µÄÐÞ¸ÄÊý¾Ý£
Ïà¹ØÎĵµ£º
±Õ°ü£º
ECMAScriptÖ§³Ö±Õ°ü¡£Ëùν±Õ°ü£¬¾ÍÊǺ¯ÊýÄÜʹÓú¯ÊýÍⶨÒåµÄ±äÁ¿¡£
var iBaseNum = 10;
function addNumbers(iNum1, iNum2)
{
function doAddition()
......
¶¨ÒåºÍÓ÷¨
prompt() ·½·¨ÓÃÓÚÏÔʾ¿ÉÌáʾÓû§½øÐÐÊäÈëµÄ¶Ô»°¿ò¡£
Óï·¨
prompt(text,defaultText)
²ÎÊýÃèÊö
text
¿ÉÑ¡¡£ÒªÔÚ¶Ô»°¿òÖÐÏÔʾµÄ´¿Îı¾£¨¶ø²»ÊÇ HTML ¸ñʽµÄÎı¾£©¡£
defaultText
¿ÉÑ¡¡£Ä¬ÈϵÄÊäÈëÎı¾¡£
˵Ã÷
Èç¹ûÓû§µ¥»÷Ìáʾ¿òµÄÈ¡Ïû°´Å¥£¬Ôò·µ»Ø null¡£Èç¹ûÓû§µ¥»÷È·Èϰ´Å¥£¬Ôò·µ»ØÊäÈë×ֶε±Ç°Ï ......
50¸öʵÓõÄJavaScript¹¤¾ß- - JavaEye¼¼ÊõÍøÕ¾
JavaScriptÊÇÒ»¸ö¹¦ÄÜÇ¿´óµÄ¿Í»§¶Ë½Å±¾ÓïÑÔ£¬Ðí¶àÏÖ´ú»¯µÄÍøÕ¾ºÍWebÓ¦ÓóÌÐò¶¼»áʹÓõ½Ëü¡£JavaScript¿ÉÒÔÔöÇ¿Óû§µÄÌåÑ飬²¢Ìṩ·á¸»µÄ»¥¶¯Ê½×é¼þºÍ¹¦ÄÜ¡£ËäÈ»ËüµÄÓï·¨Ï൱¼òµ¥£¬µ«ÊǶԿª·¢ÕßÀ´Ëµ»¹ÊǺÜÓÐÄѶȵģ¬ÒòΪËüÒªÔËÐÐÔÚWebä¯ÀÀÆ÷ÖС£
¡¡¡¡ÒÔÏÂÊÇÎÒÃÇΪÄãÍÆ¼öµÄ50¸ ......
Arguments
¸Ã¶ÔÏó´ú±íÕýÔÚÖ´Ðеĺ¯ÊýºÍµ÷ÓÃËüµÄº¯ÊýµÄ²ÎÊý¡£
[function.]arguments[n]
²ÎÊý
function £ºÑ¡Ïî¡£µ±Ç°ÕýÔÚÖ´ÐÐµÄ Function ¶ÔÏóµÄÃû×Ö¡£
n £ºÑ¡Ïî¡£Òª´«µÝ¸ø Function ¶ÔÏóµÄ´Ó0¿ªÊ¼µÄ²ÎÊýÖµË÷Òý¡£
˵Ã÷
ArgumentsÊǽøÐк¯Êýµ÷ÓÃʱ£¬³ýÁËÖ¸¶¨µÄ²ÎÊýÍ⣬»¹ÁíÍâ´´½¨µÄÒ»¸öÒþ²Ø¶ÔÏó¡£ArgumentsÊÇÒ»¸öÀàËÆ ......
jQuery, MooTools, Prototype µÈÓÅÐãµÄ
JavaScript ¿ò¼ÜÓµÓи÷ÖÖÇ¿´óµÄ¹¦ÄÜ£¬°üÀ¨»æÖÆ Web ͼ±í£¬Ê¹ÓÃÕâЩ¿ò¼ÜÒÔ¼°ÏàÓ¦²å¼þ£¬ÎÒÃÇ¿ÉÒԷdz£ÇáËɵØÊµÏÖÇúÏßͼ£¬Ô²±ýͼ£¬Öù״ͼµÈ
Web ͼ±íµÄ»æÖÆ£¬¶ø²»±ØÏóÒÔÍùÄÇÑùͨ¹ý¸´Ô Flash ¼¼ÊõʵÏÖ¡£±¾ÎĽéÉÜÁË9¸öÓÅÐãµÄ»ùÓÚ JavaScript Óë CSS& ......