Contoh dalam artikel ini menerangkan pelaksanaan JS bagi kesan navigasi penukaran bandar di seluruh negara yang meluncur ke bawah dari bahagian atas halaman web. Kongsikan dengan semua orang untuk rujukan anda. Butirannya adalah seperti berikut:
Ini ialah versi JS navigasi penukaran bandar yang meluncur ke bawah dari bahagian atas halaman web Ia meniru penukaran navigasi bandar di bahagian atas halaman web pembelian kumpulan sohu Ia meluncur ke bawah untuk memudahkan bertukar antara bandar lain. Ia dilaksanakan menggunakan pemalam enkapsulasi JS daripada versi asal sohu.com Ia hanya untuk demonstrasi, jadi bandar di seluruh negara tidak tersedia.
Tangkapan skrin kesan berjalan adalah seperti berikut:
Alamat demo dalam talian adalah seperti berikut:
http://demo.jb51.net/js/2015/js-web-scroll-city-cha-style-codes/
Kod khusus adalah seperti berikut:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>网页顶部向下滑出的切换城市导航</title> <style> body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,form,img,dl,dt,dd,table,th,td,blockquote,fieldset,div,strong,label,em{margin:0;padding:0;border:0;} ul,ol,li{list-style:none;} input,button{margin:0;font-size:12px;vertical-align:middle;} body{font-size:12px;font-family:Arial, Helvetica, sans-serif; text-align:center; margin:0 auto;} table{border-collapse:collapse;border-spacing:0;} p{line-height:24px} .clearfloat{height:0;font-size:1px;clear:both;line-height:0;} #container{ width:960px; text-align:left; margin:0 auto; } a{color:#333;text-decoration:none;} a:hover{color:#ef9b11; text-decoration:underline;} .header{ background:url(images/tuan_head_01.gif) repeat-x; height:32px;} .header .topCtiy {PADDING-RIGHT: 10px; PADDING-TOP: 4px; HEIGHT: 22px} .header .topCtiy UL {FLOAT: right} .header .topCtiy LI {PADDING-RIGHT: 10px; DISPLAY: inline; PADDING-LEFT: 10px; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN-LEFT: 3px; COLOR: #fff; LINE-HEIGHT: 22px; PADDING-TOP: 0px} .header .topCtiy LI.i1 {PADDING-RIGHT: 13px; PADDING-LEFT: 13px; FONT-WEIGHT: bold; FONT-SIZE: 14px; BACKGROUND: #e16e6e; PADDING-BOTTOM: 0px; PADDING-TOP: 0px} .header .topCtiy LI.i2 {BACKGROUND: url(images/tuan_icon10.gif) no-repeat 100% 50%; CURSOR: pointer} .header .topCtiy LI A {COLOR: #fff} .header .topCtiy LI A:hover {COLOR: #fff} .selCity {PADDING-RIGHT: 0px; PADDING-LEFT: 0px; Z-INDEX: 10; BACKGROUND: url(images/tuan_bgx06.gif) #7e2725 repeat-x 50% bottom; PADDING-BOTTOM: 4px; WIDTH: 100%; PADDING-TOP: 2px; POSITION: relative;} .selCity .none {LEFT: 47.5%; BOTTOM: -18px; POSITION: absolute} .selCity .none A {DISPLAY: block; BACKGROUND: url(images/tuan_bg15.gif) no-repeat; WIDTH: 68px; TEXT-INDENT: -3000px; HEIGHT: 21px; TEXT-DECORATION: none} .selCity .none A:hover {DISPLAY: block; BACKGROUND: url(images/tuan_bg15.gif) no-repeat; WIDTH: 68px; TEXT-INDENT: -3000px; HEIGHT: 21px; TEXT-DECORATION: none} .selCity TABLE {MARGIN: 0px auto; WIDTH: 950px; BORDER-COLLAPSE: collapse} .selCity TABLE TD {BORDER-RIGHT: #8b3d3b 1px dashed; BORDER-TOP: #8b3d3b 1px dashed; FONT-SIZE: 14px; VERTICAL-ALIGN: middle; BORDER-LEFT: #8b3d3b 1px dashed; WIDTH: 157px; COLOR: #fff; BORDER-BOTTOM: #8b3d3b 1px dashed; HEIGHT: 39px; TEXT-ALIGN: center} .selCity TABLE TD A {DISPLAY: block; COLOR: #fff; LINE-HEIGHT: 40px; HEIGHT: 40px; TEXT-DECORATION: none} .selCity TABLE TD A:hover {BACKGROUND: #a86e6d; COLOR: #fff; TEXT-DECORATION: none} .selCity TABLE TD A.cur {BACKGROUND: #a86e6d} .header .box {MARGIN-TOP: 36px; TEXT-ALIGN: left} .header .lab_city {MARGIN-TOP: 1px; FLOAT: left; WIDTH: 210px; COLOR: #fff; POSITION: relative; HEIGHT: 25px} .header .sel_fl {PADDING-RIGHT: 10px; PADDING-LEFT: 10px; BACKGROUND: #400a09; LEFT: -97px; PADDING-BOTTOM: 27px; WIDTH: 361px; PADDING-TOP: 23px; POSITION: absolute; TOP: 28px} .header .sel_fl TABLE {BORDER-COLLAPSE: collapse} .header .sel_fl TABLE TD { BORDER-RIGHT: #8b3d3b 1px dashed; BORDER-TOP: #8b3d3b 1px dashed; FONT-SIZE: 14px; VERTICAL-ALIGN: middle; BORDER-LEFT: #8b3d3b 1px dashed; WIDTH: 88px; COLOR: #fff; BORDER-BOTTOM: #8b3d3b 1px dashed; HEIGHT: 34px; TEXT-ALIGN: center} .header .sel_fl TABLE TD.first {BORDER-LEFT-WIDTH: 0px} .header .sel_fl TABLE TD.last {BORDER-RIGHT-WIDTH: 0px} .header .sel_fl TABLE TD A {DISPLAY: block; LINE-HEIGHT: 34px; HEIGHT: 34px; TEXT-DECORATION: none} .header .sel_fl TABLE TD A:hover {DISPLAY: block; LINE-HEIGHT: 34px; HEIGHT: 34px; TEXT-DECORATION: none} .header .sel_fl TABLE TD A:hover {BACKGROUND: #5c2f2e} .header .sel_fl TABLE TD A.cur {BACKGROUND: #5c2f2e} .header .lab_city .city {FONT-WEIGHT: bold; FONT-SIZE: 14px; BACKGROUND: url(images/tuan_bg01.gif) no-repeat 100% 0px; FLOAT: left; WIDTH: 70px; LINE-HEIGHT: 25px; MARGIN-RIGHT: 16px; TEXT-ALIGN: center} .header .lab_city .txt {DISPLAY: inline-block; CURSOR: pointer; PADDING-TOP: 8px} </style> </head> <BODY> <DIV class=selCity id=allCity style="DISPLAY: none"> <DIV class=area> <TABLE> <TBODY> <TR> <TD><A class=cur href="#">北京</A></TD> <TD><A href="#">上海</A></TD> <TD><A href="#">广州</A></TD> <TD><A href="#">深圳</A></TD> <TD><A href="#">西安</A></TD></TR> <TR> <TD><A href="#">天津</A></TD> <TD><A href="#">南京</A></TD> <TD><A href="#">成都</A></TD> <TD><A href="#">杭州</A></TD> <TD><A href="#">济南</A></TD></TR> <TR> <TD><A href="#">哈尔滨</A></TD> <TD><A href="#">海南</A></TD> <TD><A href="#">沈阳</A></TD> <TD><A href="#">大连</A></TD> <TD><A href="#">石家庄</A></TD></TR> <TR> <TD><A href="#">长春</A></TD> <TD><A href="#">郑州</A></TD> <TD> </TD> <TD> </TD> <TD> </TD> <TD> </TD></TR></TBODY></TABLE> <DIV class=none><A id=foldin href="javascript:;">收起</A></DIV></DIV></DIV> <DIV class=header> <DIV class=area> <DIV class=r> <DIV class="topCtiy clear"> <UL> <LI class=i1>北京 </LI> <LI class=i2 id=changeCity>切换城市 </LI> </UL> </DIV> </DIV> </DIV> </DIV> <SCRIPT src="js/sohu.js" type=text/javascript></SCRIPT> <SCRIPT type=text/javascript> jQuery(function(){ $("#changeCity").click(function(a){$("#allCity").slideDown(300);a.stopPropagation();$(this).blur()});$("#allCity").click(function(a){a.stopPropagation()});$(document).click(function(a){a.button!=2&&$("#allCity").slideUp(300)});$("#foldin").click(function(){$("#allCity").slideUp(300)}) }); </SCRIPT> <br /><br /> <p></p> </body> </html>
Saya harap artikel ini akan membantu reka bentuk pengaturcaraan JavaScript semua orang.