¹ØÓÚjavascriptÅжÏÎļþ´óС
<script type="text/javascript">
function getFileSize(filePath) {
var image=new Image();
image.dynsrc=filePath;
alert(image.fileSize);
}
</script>
<body>
<INPUT TYPE="file" NAME="file" SIZE="30" onchange="getFileSize(this.value)">
</body>
Ïà¹ØÎĵµ£º
×î½üÔÚÍøÉϲéÔÄÁ˲»ÉÙJavascript±Õ°ü(closure)Ïà¹ØµÄ×ÊÁÏ£¬Ð´µÄ´ó¶àÊǷdz£µÄѧÊõºÍרҵ¡£¶ÔÓÚ³õѧÕßÀ´Ëµ±ð˵Àí½â±Õ°üÁË£¬¾ÍÁ¬ÎÄ×ÖÐðÊö¶¼ºÜÄÑ¿´¶®¡£×«Ð´´ËÎĵÄÄ¿µÄ¾ÍÊÇÓÃ×îͨË×µÄÎÄ×Ö½Ò¿ªJavascript±Õ°üµÄÕæÊµÃæÄ¿¡£
Ò»¡¢Ê²Ã´ÊDZհü£¿
“¹Ù·½”µÄ½âÊÍÊÇ£ºËùν“±Õ°ü”£¬Ö¸µÄÊÇÒ»¸öÓµÓÐÐí¶à±äÁ¿ºÍ°ó¶¨Á ......
<!--
/* Font Definitions */
@font-face
{font-family:ËÎÌå;
panose-1:2 1 6 0 3 1 1 1 1 1;
mso-font-alt:SimSun;
mso-font-charset:134;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 135135232 16 0 262145 0;}
@font-face
{font-family:"Cambria Mat ......
×î½üд¶«Î÷µÄʱºò·¢ÏÖÐèÒª¶Ôä¯ÀÀÆ÷µÄ¹Ø±Õ½øÐмàÌý,µ±Óû§¹Ø±ÕµÄʱºòÐèÒªµ÷ÓÃsession.invalid();Çå¿ÕsessionÐÅÏ¢,µ«ÊÇ×Ðϸһ²éÊֲᷢÏÖÎÞÂÛÊÇbody»¹ÊÇwindow¶¼Ã»ÓÐoncloseʼþ,Ö®ºóonload,onunload,beforeunloadÈý¸öʼþ
È»¶øÈý¸öʱ¼äÎÞÂÛÊÇÄĸö¶¼ÎÞ·¨µ¥¶À½â¾öµ¥¶À¼àÌýä¯ÀÀÆ÷¹Ø±ÕµÄʼþ,ÒòΪÔÚä¯ÀÀÆ÷Õý³£ÔËÐÐʱÏȼÓÔØµÄÊÇbe ......
º¯ÊýÊǽøÐÐÄ£¿é»¯³ÌÐòÉè¼ÆµÄ»ù´¡£¬±àд¸´ÔÓµÄAjaxÓ¦ÓóÌÐò£¬±ØÐë¶Ôº¯ÊýÓиüÉîÈëµÄÁ˽⡣JavaScriptÖеĺ¯Êý²»Í¬ÓÚÆäËûµÄÓïÑÔ£¬Ã¿¸öº¯Êý¶¼ÊÇ
×÷Ϊһ¸ö¶ÔÏó±»Î¬»¤ºÍÔËÐеġ£Í¨¹ýº¯Êý¶ÔÏóµÄÐÔÖÊ£¬¿ÉÒԺܷ½±ãµÄ½«Ò»¸öº¯Êý¸³Öµ¸øÒ»¸ö±äÁ¿»òÕß½«º¯Êý×÷Ϊ²ÎÊý´«µÝ¡£ÔÚ¼ÌÐø½²Êö֮ǰ£¬ÏÈ¿´Ò»Ïº¯ÊýµÄʹÓÃÓï
·¨£º
function func1(& ......
Êý¾ÝÀàÐÍ
»ù±¾Êý¾ÝÀàÐÍ
»ù±¾Êý¾ÝÀàÐÍÊÇJSÓïÑÔ×îµ×²ãµÄʵÏÖ¡£
¼òµ¥ÊýÖµÀàÐÍ: ÓÐUndefined, Null, Boolean, NumberºÍString¡£×¢Ò⣬ÃèÊöÖеÄÓ¢Îĵ¥´ÊÔÚÕâÀï½öÖ¸Êý¾ÝÀàÐ͵ÄÃû³Æ£¬²¢²»ÌØÖ¸JSµÄÈ«¾Ö¶ÔÏóN an, Boolean, Number, StringµÈ£¬ËüÃÇÔÚ¸ÅÄîÉϵÄÇø±ðÊDZȽϴóµÄ¡£
¶ÔÏó: Ò»¸öÎÞÐòÊôÐԵļ¯ºÏ£¬ÕâЩÊôÐÔµÄֵΪ¼òµ¥ÊýÖµÀ ......