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1£¬encodeURI·½·¨
·µ»Ø¶ÔÒ»¸öURI×Ö·û´®±àÂëÖеĽá¹û£¬±¾ÖÊÊÇUTF-8±àÂë
eg:
var urlStr = encodeURI('http://fanli.qq.com/index.html?a=ddd&msg=Öйú');
alert(urlStr);
2, decodeURI·½·¨
¶ÔURI±àÂë½øÐнâÂë³Â×î³õʼµÄ×Ö·û´®²¢·µ»Ø
3£¬parseInt·½·¨
½«Ò»¸ö×Ö·û´®°´Ö¸¶¨µÄ½øÖÆ×ª»»³ÉÒ»¸öÕûÊý
parseInt(numString, [radix])¡£Èç¹ûûÓÐÖ¸¶¨µÚ¶þ¸ö²ÎÊý£¬Ôòǰ׺Ϊ'0x'µÄ×Ö·û´®±»ÊÓΪʮÁù½øÖÆ£¬Ç°×ºÎª'0'µÄ×Ö·û´®±»ÊÓΪ°Ë½øÖÆ
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eg:
parseInt('123abc',10); //½á¹ûΪ123
4£¬parseFloat·½·¨£ºÈôת»»Ê§°Ü£¬Ôò·µ»ØNaN
5£¬isNaN·½·¨ ---ÓµÓмì²âparseIntºÍparseFloat·½·¨µÄ·µ»ØÖµÊÇ·ñÊÇNaN (Not a Number)
×¢Ò⣺ÅжÏÒ»¸öÊýÊÇ·ñÊÇNaN²»ÄÜÕâÑù£¬if(xx == NaN)£¬Ö»ÄÜÓø÷½·¨½øÐÐÅжϣ¬È磺
alert(NaN == NaN); //·Ç³£Ææ¹Ö£¬ÕâÀïµÄ½á¹ûÊÇfalse
alert(isNaN(NaN)); //true
6£¬escape·½·¨
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7£¬unescape·½·¨
½«Ò»¸öescape·½·¨±àÂëµÄ½á¹û×Ö·û´®½âÂë³ÂÔʼ×Ö·û´®²¢·µ»Ø¡£
8£¬eval·½·¨
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¾¹ýÑо¿µÃµ½ÁËÒÔϵĴúÂ룬Ëü¿ÉÒÔÔÚIE6,IE8,FireFoxÖÐÍêÃÀµØ°´±ÈÀýËõ·ÅͼƬ¶ø²»Ê§Õæ¡£
//¸Ä±äͼƬ´óС
function resizepic(o)
{
var maxwidth=550; //¶¨Òå×î´ó¿í¶È
var maxheight=800;&nbs ......
ÔÚ JS(JavaScript) ²Ù×÷cookies±È½Ï¸´ÔÓ£¬ÔÚ ASP ÀïÃæÎÒÃÇÖ»ÐèÒªÖªµÀ cookie µÄÃû³Æ¡¢cookie µÄÖµ¾ÍÐÐÁË£¬¶ø JS ÀïÃæ£¬ÎÒÃÇÃæ¶ÔµÄÊÇ cookie µÄ×Ö·û´®£¬Äã×Ô¼º±àдÕâ¸ö×Ö·û´®Ð´Èë¿Í»§¶Ë£¬È»ºó×Ô¼º½âÎöÕâ¸ö×Ö·û´®¡£
¡¡¡¡Ò»¡¢´Óд cookie ˵Æð¡£
var the_date = new Date("December 31, 2020");
var expiresDate ......
function openCheck()
{
if (!this.external)
{
app.alert("Acrobat¤Ç¤Ï実ÐФǤ¤Þ¤»¤ó");
this.closeDoc(true);
// var myDoc = event.target;
// myDoc.closeDoc(true);
}
}
openCheck();
ÐèҪעÒâµÄÊÇ:
1. ÉÏÊöµÄsourceÖ»ÄÜÔÚPDF ÓÃAcrobat Reader´ò¿ªÊ±²ÅÆð×÷ÓÃ,
ÈçÓÃIEµÈ´ò¿ªÊ±»á±¨¡¸NotSu ......
±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¡£
......
1.delete ÔËËã·û
¶ÔÏóɾ³ýÒ»¸öÊôÐÔ£¬»òÊý×éÖÐɾ³ýÒ»¸öÔªËØ¡£½«ÎÞÓõÄÄÚÈÝɾ³ýÒÔ½ÚÊ¡¿Õ¼ä¡£
delete expression
example:
var person = new Object();
person.sex = "male";
alert(person.sex);
delete person.sex;
alert(person.sex);
2. ‘,' ÔËËã·û
var a = 2;
......