Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

¼òµ¥µÄjavascriptСÊýµãÅжÏ


ÎÒÔÚjavaScript ÓÃÕâ¸ö´úÂëÅжÏÊäÈëµÄÖµÊÇ·ñÊÇÊý×Ö£¬

ÔÊÐíСÊýµãÊäÈëµÄ»°£¬ Ó¦¸Ã¼Óʲô£¿ ÎÒ¼ÓÁË \. ÊÔÁËÊÔ²»ÐУ¬

ÓÐÄÇλÓÐÏֳɵĴúÂ룬 Ìṩ²Î¿¼ÒÔϰÉ


txt = document.getElementById('num').value;
for (i=0; i <txt.length; i++) {
  c = txt.charAt(i);
  if ("0123456789".indexOf(c,0) < 0) {
    alert("ÊäÈëµÄÖµÊÇÊý×ÖÒÔÍâ");
  }
}


¹È¸è°Ù¶È¶¼¿ÉÒÔ¡£Êý×ÖÑéÖ¤µÄJSº¯ÊýºÜ¶àµÄ¡£µ«ÊǶ¼ÊÇÓÃÕýÔò×öµÄ¡£»¹Ã»¿´µ½¹ýÄãÕâôдµÄ¡£

ÓÃÕýÔò±í´ïʽ
str.match("\\d*")
À´Åжϰɡ£

txt = document.getElementById('num').value;
for (i=0; i <txt.length; i++) {
  c = txt.charAt(i);
  if ("0123456789.".indexOf(c,0) < 0) {
    alert("ÊäÈëµÄÖµÊÇÊý×ÖÒÔÍâ");
  }
}

¼Ó¸öµã¾Í¿ÉÒÔÁË


jsÓиöº¯Êý isNaN(val)¡¡¡¡¡¡Èç¹ûÊÇÊý×ÖÔò·µ»Ø false

ÊÔ¹ý isNaN(val) ÓеãµÄ»°·µ»Øfalse

Â¥Ö÷ÄãÒ»¶¨ÒªÓÃÄãµÄд·¨Ã´£¿ÓÃÕýÔòÓÐɶ²»ºÃ£¿ÄÜʵÏÖ¹¦ÄܾÍÐÐÁËߣ¡ÎªºÎÈç´Ë½ÏÕæ£¿¿ì˵£¬ÄãÕâ¸ö߹ͷƬ×Ó£¡¹þ¹þ£¡Æäʵ4Â¥µÄд·¨¾ÍÂú×ãÁ˰¡£¬»¹ÄÜÑéÖ¤¸ºÊýÄØ¡£3Â¥µÄÒ²¿ÉÒÔ°¡£¡ÄѵÀÄ㻹²»ÂúÒ⣿

/^-{0,1}[0-9]+\.{0,1}[0-9]*$/.test(±äÁ¿)

¶¥7Â¥ºÍ8à¶

4Â¥µÄÊԳɹ¦ÁË¡£¡£
¸Ðл¸÷λ£¡£¡

IceWee  ÈÃÄú׿±ÁË£¬  »¹ÊÇллÄã°¡


Ïà¹ØÎÊ´ð£º

ÇóÒ»¸öÓÃÕýÔò±í´ïʽʵÏÖ¼òµ¥ÑéÖ¤µÄJavaScript´úÂë

ÈçÓÐÒ»¸ötextbox£¬Óû§ÊäÈëºóµãbutton°´Å¥Ê±£¬ÊµÏÖÓÃJavaScript¶ÔtextboxÊäÈëÐÅÏ¢µÄÑéÖ¤£¬ÒªÇóÓÃJavaScriptÀ´ÊµÏÖ£¬±ÈÈçÑéÖ¤Óû§ÊäÈëµÄÊÇ·ñÊÇÊý×Ö¡£
Ï£Íû½«HTML´úÂëÒ»²¢Ð´³öÀ´¹þ£¬Ð»Ð»
HTML code:

<!DOC ......

ActiveXºÍJavaScriptµÄ½»»¥ÎÊÌâ

    ÎÊÌâÃèÊöÈçÏ£º
    ÓÃC#¿ª·¢µÄActiveXǶÈëÍøÒ³ÖУ¬¸ÃActiveXÖÐÓÐÒ»¸ö°´Å¥button1.ÏÖÔÚҪʹµÃÓû§µ¥»÷ÁËbutton1ºóʵÏÖÒ³ÃæÌø×ªµÄ¹¦ÄÜ£¬¼´Óɵ±Ç°µÄ1.htmÌø×ªµ½2.htm¡£
    Î ......

JavaScriptÓÎÏ·ÂêÀöÒ½ÉúDr MarioʵÏÖÔ­Àí

ÔںܾúܾÃÒÔǰ£¬ÎÒÃÇÕâЩ80ºóµÄСÅóÓÑÖÕÓÚÍæÉÏÁË×Ô¼ºµÄС°ÔÍõÓÎÏ·»ú£¬³¬¼¶ÂêÀö£¬ÂêÀöÒ½Éú£¬Ñ©ÈËÐֵܣ¬Öî¶à¾­µäÓÎÏ·ÈÃÈËÎÞ·¨Íü»³£¬³ÉΪһ¸öÐĽᣡ

ÔÚÍê³ÉÁ˶íÂÞ˹·½¿éºó£¬ÕâÊÇÎÒдµÄÓÖÒ»¸öJavaScriptÓÎÏ·£¬Âê ......

javascript ÈçºÎÉèÖÃbodyµÄÊôÐÔ

ÎÒÏëÉèÖÃbodyÖеÄÊý¾Ý¾àÀëä¯ÀÀÆ÷×ó±ß¿òÒ»¶¨¾àÀëʹÓÃmargin-left¿ÉÒÔÉèÖ㬵«ÊÇÎÒÏ£ÍûÕâ¸öÖµÊǼÆËã³öÀ´µÄ£¬Ò²¾ÍÊÇҪʹÓÃJavaScript¼ÆËãÒ»ÏÂÈ»ºóÔÙʹbodyÏÔʾ½á¹û¡£²»ÖªµÀ¸ÃÔõôÉèÖã¬Ôõôµ÷Óã¬Ï£Íû´ó¼Ò°ïÖúһϣ¬¸ø¸ ......

javaScriptµÄ±í¸ñµã»÷ºó¿ÉÒÔÊäÈë

Ñ¡Öеıí¸ñÊ×ÏÈÒª±ä³ÉÀ¶É«¡£È»ºóÔÚµã»÷һϾͿÉÒÔÊäÈëÁË¡£¼±
²»Ì«Ã÷°×Òâ˼£¬¾ßÌåµã...

JScript code:

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv=&q ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ