发布于 2016-12-04 01:57:42 | 80 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的Javascript教程,程序狗速度看过来!

JavaScript客户端脚本语言

Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如Perl,遗留的速度问题,为客户提供更流畅的浏览效果。



作者:ybcola 
这段js代码是很久以前的作品了,应该在一年以前吧!当时是在做一个农村人才管理系统的时候遇到的问题,因为系统要求参选择并通过后台添加省市区县甚至到乡镇村队,而在对人才的信息进行修改时要求用下拉列表进行选择,并且每个人才来源可能是省市,或者省市区县,或者一直取队都要选择!那时第一反映就是找网上是否有现成的代码,找到一个最常用的就是省市二级联动,那时那段js代码在网上随处可见,可是拿过来对我来说没用,因为我需要的是一个多级联通并且可以自由扩展的代码!最终还是自己动手写了JS代码。

  为了考虑在同一个页面中多处使用,因些使用了对象的思想进行设计,为了实现各个多级联动的内容不同,所以把内空数据结构与程序进行了分离,因此设计最终调用方法如:

 var city=new LightManAddressTree;
 city.selectshow(obj,0); //obj为要添加到的dom结点,

 如有html代码如下<div id="abc"></div>
那么调用方法就应该为
obj=document.getElementById("abc");
 var city=new LightManAddressTree;
 city.selectshow(obj,0);
这样多级联动内容就为显示在闭合的div标签内的位置
 其js设计代码如下:

//定义地址数据开始 
var AddressTree={}; 
AddressTree["a_row"]=new Array(); //存所有记录 
with(AddressTree){ 
a_row["1"]=["北京市",0,1]; 
a_row["2"]=["上海市",0,1]; 
a_row["3"]=["天津市",0,1]; 
a_row["4"]=["重庆市",0,1]; 
a_row["5"]=["河北",0,0]; 
a_row["6"]=["山西",0,0]; 
a_row["7"]=["内蒙古",0,0]; 
a_row["8"]=["辽宁",0,0]; 
a_row["9"]=["吉林",0,0]; 
a_row["10"]=["黑龙江",0,0]; 
a_row["11"]=["江苏",0,0]; 
a_row["12"]=["渐江",0,0]; 
a_row["13"]=["安徽",0,0]; 
a_row["14"]=["福建",0,0]; 
a_row["15"]=["江西",0,0]; 
a_row["16"]=["山东",0,0]; 
a_row["17"]=["河南",0,0]; 
a_row["18"]=["湖北",0,0]; 
a_row["19"]=["湖南",0,0]; 
a_row["20"]=["广东",0,0]; 
a_row["21"]=["广西",0,0]; 
a_row["22"]=["海南",0,0]; 
a_row["23"]=["四川",0,0]; 
a_row["24"]=["贵州",0,0]; 
a_row["25"]=["云南",0,0]; 
a_row["26"]=["西藏",0,0]; 
a_row["27"]=["陕西",0,0]; 
a_row["28"]=["甘肃",0,0]; 
a_row["29"]=["青海",0,0]; 
a_row["30"]=["宁夏",0,0]; 
a_row["31"]=["新壃",0,0]; 
a_row["32"]=["香港",0,1]; 
a_row["33"]=["澳门",0,1]; 
a_row["34"]=["台湾",0,0]; 
a_row["35"]=["石家庄",5,1]; 
a_row["36"]=["唐山",5,1]; 
a_row["37"]=["秦皇岛",5,1]; 
a_row["38"]=["邯郸",5,1]; 
a_row["39"]=["邢台",5,1]; 
a_row["40"]=["保定",5,1]; 
a_row["41"]=["张家口",5,1]; 
a_row["42"]=["承德",5,1]; 
a_row["43"]=["沧州",5,1]; 
a_row["44"]=["廊坊",5,1]; 
a_row["45"]=["衡水",5,1]; 
a_row["46"]=["太原",6,1]; 
a_row["47"]=["大同",6,1]; 
a_row["48"]=["阳泉",6,1]; 
a_row["49"]=["长治",6,1]; 
a_row["50"]=["晋城",6,1]; 
a_row["51"]=["朔州",6,1]; 
a_row["52"]=["晋中",6,1]; 
a_row["53"]=["运城",6,1]; 
a_row["54"]=["忻州",6,1]; 
a_row["55"]=["临汾",6,1]; 
a_row["56"]=["吕梁",6,1]; 
a_row["58"]=["呼和浩特",7,1]; 
a_row["59"]=["包头",7,1]; 
a_row["60"]=["乌海",7,1]; 
a_row["61"]=["赤峰",7,1]; 
a_row["62"]=["通辽",7,1]; 
a_row["63"]=["鄂尔多斯",7,1]; 
a_row["64"]=["呼伦贝尔",7,1]; 
a_row["65"]=["乌兰察布市",7,1]; 
a_row["66"]=["锡林郭勒盟",7,1]; 
a_row["67"]=["巴彦淖尔盟",7,1]; 
a_row["68"]=["阿拉善盟",7,1]; 
a_row["69"]=["兴安盟",7,1]; 
a_row["70"]=["沈阳",8,1]; 
a_row["71"]=["大连",8,1]; 
a_row["72"]=["鞍山",8,1]; 
a_row["73"]=["抚顺",8,1]; 
a_row["74"]=["本溪",8,1]; 
a_row["75"]=["丹东",8,1]; 
a_row["76"]=["锦州",8,1]; 
a_row["77"]=["葫芦岛",8,1]; 
a_row["78"]=["营口",8,1]; 
a_row["79"]=["盘锦",8,1]; 
a_row["80"]=["阜新",8,1]; 
a_row["81"]=["辽阳",8,1]; 
a_row["82"]=["铁岭",8,1]; 
a_row["83"]=["朝阳",8,1]; 
a_row["84"]=["长春",9,1]; 
a_row["85"]=["吉林",9,1]; 
a_row["86"]=["四平",9,1]; 
a_row["87"]=["辽源",9,1]; 
a_row["88"]=["通化",9,1]; 
a_row["89"]=["白山",9,1]; 
a_row["90"]=["松原",9,1]; 
a_row["91"]=["白城",9,1]; 
a_row["92"]=["延办朝鲜族自治州",9,1]; 
a_row["93"]=["哈尔滨",10,1]; 
a_row["94"]=["齐齐哈尔",10,1]; 
a_row["95"]=["鹤岗",10,1]; 
a_row["96"]=["双鸭山",10,1]; 
a_row["97"]=["鸡西",10,1]; 
a_row["98"]=["大庆",10,1]; 
a_row["99"]=["伊春",10,1]; 
a_row["100"]=["牡丹江",10,1]; 
a_row["101"]=["佳木斯",10,1]; 
a_row["102"]=["七台河",10,1]; 
a_row["103"]=["黑河",10,1]; 
a_row["104"]=["绥化",10,1]; 
a_row["105"]=["大兴安岭",10,1]; 
a_row["106"]=["南京",11,1]; 
a_row["107"]=["无锡",11,1]; 
a_row["108"]=["徐州",11,1]; 
a_row["109"]=["常州",11,1]; 
a_row["110"]=["苏州",11,1]; 
a_row["111"]=["南通",11,1]; 
a_row["112"]=["连云港",11,1]; 
a_row["113"]=["淮安",11,1]; 
a_row["114"]=["盐城",11,1]; 
a_row["115"]=["扬州",11,1]; 
a_row["116"]=["镇江",11,1]; 
a_row["117"]=["泰州",11,1]; 
a_row["118"]=["宿迀",11,1]; 
a_row["119"]=["杭州",12,1]; 
a_row["120"]=["宁波",12,1]; 
a_row["121"]=["温州",12,1]; 
a_row["122"]=["嘉兴",12,1]; 
a_row["123"]=["湖州",12,1]; 
a_row["124"]=["绍兴",12,1]; 
a_row["125"]=["金华",12,1]; 
a_row["126"]=["舟山",12,1]; 
a_row["127"]=["台州",12,1]; 
a_row["128"]=["丽水",12,1]; 
a_row["129"]=["衢州",12,1]; 
a_row["130"]=["合肥",13,1]; 
a_row["131"]=["芜湖",13,1]; 
a_row["132"]=["蚌埠",13,1]; 
a_row["133"]=["淮南",13,1]; 
a_row["134"]=["马鞍山",13,1]; 
a_row["135"]=["淮北",13,1]; 
a_row["136"]=["铜陵",13,1]; 
a_row["137"]=["安庆",13,1]; 
a_row["138"]=["黄山",13,1]; 
a_row["139"]=["滁州",13,1]; 
a_row["140"]=["阜阳",13,1]; 
a_row["141"]=["宿州",13,1]; 
a_row["142"]=["巢湖",13,1]; 
a_row["143"]=["六安",13,1]; 
a_row["144"]=["毫州",13,1]; 
a_row["145"]=["池州",13,1]; 
a_row["146"]=["宣城",13,1]; 
a_row["147"]=["福州",14,1]; 
a_row["148"]=["厦门",14,1]; 
a_row["149"]=["莆田",14,1]; 
a_row["150"]=["三明",14,1]; 
a_row["151"]=["泉州",14,1]; 
a_row["152"]=["漳州",14,1]; 
a_row["153"]=["南平",14,1]; 
a_row["154"]=["龙岩",14,1]; 
a_row["155"]=["宁德",14,1]; 
a_row["156"]=["南昌",15,1]; 
a_row["157"]=["景德镇",15,1]; 
a_row["158"]=["萍乡",15,1]; 
a_row["159"]=["新余",15,1]; 
a_row["160"]=["九江",15,1]; 
a_row["161"]=["鹰潭",15,1]; 
a_row["162"]=["吉安",15,1]; 
a_row["163"]=["宜春",15,1]; 
a_row["164"]=["抚州",15,1]; 
a_row["165"]=["上饶",15,1]; 
a_row["166"]=["赣州",15,1]; 
a_row["167"]=["济南",16,1]; 
a_row["168"]=["青岛",16,1]; 
a_row["169"]=["淄博",16,1]; 
a_row["170"]=["枣庄",16,1]; 
a_row["171"]=["东营",16,1]; 
a_row["172"]=["潍坊",16,1]; 
a_row["173"]=["烟台",16,1]; 
a_row["174"]=["威海",16,1]; 
a_row["175"]=["济宁",16,1]; 
a_row["176"]=["泰安",16,1]; 
a_row["177"]=["日照",16,1]; 
a_row["178"]=["莱芜",16,1]; 
a_row["179"]=["德州",16,1]; 
a_row["180"]=["临沂",16,1]; 
a_row["181"]=["聊城",16,1]; 
a_row["182"]=["滨州",16,1]; 
a_row["183"]=["菏泽",16,1]; 
a_row["184"]=["郑州",17,1]; 
a_row["185"]=["开封",17,1]; 
a_row["186"]=["洛阳",17,1]; 
a_row["187"]=["平顶山",17,1]; 
a_row["188"]=["焦作",17,1]; 
a_row["189"]=["鹤壁",17,1]; 
a_row["190"]=["新乡",17,1]; 
a_row["191"]=["安阳",17,1]; 
a_row["192"]=["濮阳",17,1]; 
a_row["193"]=["许昌",17,1]; 
a_row["194"]=["漯河",17,1]; 
a_row["195"]=["三门峡",17,1]; 
a_row["196"]=["南阳",17,1]; 
a_row["197"]=["南丘",17,1]; 
a_row["198"]=["信阳",17,1]; 
a_row["199"]=["周口",17,1]; 
a_row["200"]=["驻马店",17,1]; 
a_row["201"]=["济源",17,1]; 
a_row["202"]=["武汉",18,1]; 
a_row["203"]=["黄石",18,1]; 
a_row["204"]=["襄樊",18,1]; 
a_row["205"]=["十堰",18,1]; 
a_row["206"]=["荆州",18,1]; 
a_row["207"]=["宜昌",18,1]; 
a_row["208"]=["荆门",18,1]; 
a_row["209"]=["鄂州",18,1]; 
a_row["210"]=["孝感",18,1]; 
a_row["211"]=["黄冈",18,1]; 
a_row["212"]=["咸宁",18,1]; 
a_row["213"]=["随州",18,1]; 
a_row["214"]=["仙桃",18,1]; 
a_row["215"]=["天门",18,1]; 
a_row["216"]=["潜江",18,1]; 
a_row["217"]=["神农架",18,1]; 
a_row["218"]=["恩施土家族自治州",18,1]; 
a_row["219"]=["长沙",19,1]; 
a_row["220"]=["株洲",19,1]; 
a_row["221"]=["湘潭",19,1]; 
a_row["222"]=["衡阳",19,1]; 
a_row["223"]=["邵阳",19,1]; 
a_row["224"]=["岳阳",19,1]; 
a_row["225"]=["常德",19,1]; 
a_row["226"]=["张家界",19,1]; 
a_row["227"]=["益阳",19,1]; 
a_row["228"]=["郴州",19,1]; 
a_row["229"]=["怀化",19,1]; 
a_row["230"]=["娄底",19,1]; 
a_row["231"]=["湘西土家族苗族自治州",19,1]; 
a_row["232"]=["广州",20,1]; 
a_row["233"]=["深圳",20,1]; 
a_row["234"]=["珠海",20,1]; 
a_row["235"]=["汕头",20,1]; 
a_row["236"]=["韶关",20,1]; 
a_row["237"]=["佛山",20,1]; 
a_row["238"]=["江门",20,1]; 
a_row["239"]=["湛江",20,1]; 
a_row["240"]=["茂名",20,1]; 
a_row["241"]=["肇庆",20,1]; 
a_row["242"]=["惠州",20,1]; 
a_row["243"]=["梅州",20,1]; 
a_row["244"]=["汕尾",20,1]; 
a_row["245"]=["河源",20,1]; 
a_row["246"]=["阳江",20,1]; 
a_row["247"]=["清远",20,1]; 
a_row["248"]=["东莞",20,1]; 
a_row["249"]=["中山",20,1]; 
a_row["250"]=["潮州",20,1]; 
a_row["251"]=["揭阳",20,1]; 
a_row["252"]=["云浮",20,1]; 
a_row["253"]=["南宁",21,1]; 
a_row["254"]=["柳州",21,1]; 
a_row["255"]=["桂林",21,1]; 
a_row["256"]=["梧州",21,1]; 
a_row["257"]=["北海",21,1]; 
a_row["258"]=["防城港",21,1]; 
a_row["259"]=["钦州",21,1]; 
a_row["260"]=["贵港",21,1]; 
a_row["261"]=["玉林",21,1]; 
a_row["262"]=["百色",21,1]; 
a_row["263"]=["贺州",21,1]; 
a_row["264"]=["河池",21,1]; 
a_row["265"]=["来宾",21,1]; 
a_row["266"]=["崇左",21,1]; 
a_row["267"]=["海口",22,1]; 
a_row["268"]=["三亚",22,1]; 
a_row["269"]=["五指山",22,1]; 
a_row["270"]=["琼海",22,1]; 
a_row["271"]=["儋州",22,1]; 
a_row["272"]=["文昌",22,1]; 
a_row["273"]=["方宁",22,1]; 
a_row["274"]=["东方",22,1]; 
a_row["275"]=["澄迈",22,1]; 
a_row["276"]=["定安",22,1]; 
a_row["277"]=["屯昌",22,1]; 
a_row["278"]=["临高",22,1]; 
a_row["279"]=["白沙黎族自治县",22,1]; 
a_row["280"]=["江黎族自治县",22,1]; 
a_row["281"]=["乐东黎族自治县",22,1]; 
a_row["282"]=["陵水黎族自治县",22,1]; 
a_row["283"]=["保亭黎族苗族自治县",22,1]; 
a_row["284"]=["琼中称许苗族自治县",22,1]; 
a_row["285"]=["成都",23,1]; 
a_row["286"]=["自贡",23,1]; 
a_row["287"]=["攀枝花",23,1]; 
a_row["288"]=["泸州",23,1]; 
a_row["289"]=["德阳",23,1]; 
a_row["290"]=["绵阳",23,1]; 
a_row["291"]=["广元",23,1]; 
a_row["292"]=["遂宁",23,1]; 
a_row["293"]=["内江",23,1]; 
a_row["294"]=["乐山",23,1]; 
a_row["295"]=["南充",23,1]; 
a_row["296"]=["宜宾",23,1]; 
a_row["297"]=["广安",23,1]; 
a_row["298"]=["达州",23,1]; 
a_row["299"]=["眉山",23,1]; 
a_row["300"]=["雅安",23,1]; 
a_row["301"]=["巴中",23,1]; 
a_row["302"]=["资阳",23,1]; 
a_row["303"]=["阿坝藏族羌族自治州",23,1]; 
a_row["304"]=["甘孜藏族自治州",23,1]; 
a_row["305"]=["凉山彝族自治州",23,1]; 
a_row["306"]=["贵阳",24,1]; 
a_row["307"]=["六盘水",24,1]; 
a_row["308"]=["遵义",24,1]; 
a_row["309"]=["安顺",24,1]; 
a_row["310"]=["铜仁",24,1]; 
a_row["311"]=["毕节",24,1]; 
a_row["312"]=["黔西南布依族苗族自治州",24,1]; 
a_row["313"]=["黔东南苗族自治州",24,1]; 
a_row["314"]=["黔南布依族苗族自治州",24,1]; 
a_row["315"]=["昆明",25,1]; 
a_row["316"]=["曲靖",25,1]; 
a_row["317"]=["玉溪",25,1]; 
a_row["318"]=["保山",25,1]; 
a_row["319"]=["昭通",25,1]; 
a_row["320"]=["丽江",25,1]; 
a_row["321"]=["思茅",25,1]; 
a_row["322"]=["监沧",25,1]; 
a_row["323"]=["文山壮族苗族自治州",25,1]; 
a_row["324"]=["红河哈尼族彝族自治州",25,1]; 
a_row["325"]=["西双版纳傣族自治州",25,1]; 
a_row["326"]=["楚雄彝族自治州",25,1]; 
a_row["327"]=["大理白族自治州",25,1]; 
a_row["328"]=["德宏傣族景颇族自治州",25,1]; 
a_row["329"]=["怒江僳僳族自治州",25,1]; 
a_row["330"]=["迪庆藏族自治州",25,1]; 
a_row["331"]=["拉萨",26,1]; 
a_row["332"]=["那曲",26,1]; 
a_row["333"]=["昌都",26,1]; 
a_row["334"]=["山南",26,1]; 
a_row["335"]=["日喀则",26,1]; 
a_row["336"]=["阿里",26,1]; 
a_row["337"]=["林芝",26,1]; 
a_row["338"]=["西安",27,1]; 
a_row["339"]=["铜川",27,1]; 
a_row["340"]=["宝鸡",27,1]; 
a_row["341"]=["咸阳",27,1]; 
a_row["342"]=["渭南",27,1]; 
a_row["343"]=["延安",27,1]; 
a_row["344"]=["汉中",27,1]; 
a_row["345"]=["榆林",27,1]; 
a_row["346"]=["安康",27,1]; 
a_row["347"]=["商洛",27,1]; 
a_row["348"]=["兰州",28,1]; 
a_row["349"]=["金昌",28,1]; 
a_row["350"]=["白银",28,1]; 
a_row["351"]=["天水",28,1]; 
a_row["352"]=["嘉峪关",28,1]; 
a_row["353"]=["武威",28,1]; 
a_row["354"]=["张掖",28,1]; 
a_row["355"]=["平凉",28,1]; 
a_row["356"]=["洒泉",28,1]; 
a_row["357"]=["庆阳",28,1]; 
a_row["358"]=["定西",28,1]; 
a_row["359"]=["陇南",28,1]; 
a_row["360"]=["临夏回族自治州",28,1]; 
a_row["361"]=["甘南藏族自治州",28,1]; 
a_row["362"]=["西宁",29,1]; 
a_row["363"]=["海东",29,1]; 
a_row["364"]=["海北藏族自治州",29,1]; 
a_row["365"]=["黄南藏族自治州",29,1]; 
a_row["366"]=["海南藏族自治州",29,1]; 
a_row["367"]=["果洛藏族自治州",29,1]; 
a_row["368"]=["玉树藏族自治州",29,1]; 
a_row["369"]=["海西蒙古藏族自治州",29,1]; 
a_row["370"]=["银川",30,1]; 
a_row["371"]=["石嘴山",30,1]; 
a_row["372"]=["吴忠",30,1]; 
a_row["373"]=["固原",30,1]; 
a_row["374"]=["乌鲁木齐",31,1]; 
a_row["375"]=["克拉玛依",31,1]; 
a_row["376"]=["石河子",31,1]; 
a_row["377"]=["阿拉尔",31,1]; 
a_row["378"]=["图木舒克",31,1]; 
a_row["379"]=["五家渠",31,1]; 
a_row["380"]=["吐鲁",31,1]; 
a_row["381"]=["哈密",31,1]; 
a_row["382"]=["和田",31,1]; 
a_row["383"]=["阿克苏",31,1]; 
a_row["384"]=["喀什",31,1]; 
a_row["385"]=["克孜勒苏柯尔克孜自治州",31,1]; 
a_row["386"]=["巴音郭楞蒙古自治州",31,1]; 
a_row["387"]=["昌吉回族自治州",31,1]; 
a_row["388"]=["博尔塔拉蒙古自治州",31,1]; 
a_row["389"]=["伊犁哈萨克自治州",31,1]; 
a_row["390"]=["台北",34,1]; 
a_row["391"]=["高雄",34,1]; 
a_row["392"]=["基隆",34,1]; 
a_row["393"]=["台中",34,1]; 
a_row["394"]=["台南",34,1]; 
a_row["395"]=["新竹",34,1]; 
a_row["396"]=["嘉义",34,1]; 
a_row["397"]=["sss",285,1]; 
} 
var j=0; 
AddressTree["a_record"]=new Array();//存储记录的记录号 
for(i in AddressTree["a_row"]){AddressTree["a_record"][j++]=i;} 
AddressTree.ObjNumber=1; 
//地址选择构造函数 
function LightManAddressTree(){ 
  var Data = AddressTree; //数据记录数据变量 
  this.noselectshow=["--请选择省份--","--请选择城市--","--请选择区县--"];//各级不选择显示值 
  this.grade=0;  //级数 
  this.idvalue=0; //地址选择值的id号 
  this.text=""; //地址字符串 
  this.listseparator=" "; //地址字符串中的分隔符号 
  this.selectName="a_tree"+(AddressTree.ObjNumber++)+"_"; 
  //定义地址数据结束 
  this.getfontpath =  function(id){ //取得指定记录号的上级路径 
    var path = "",upid; 
    try{ 
    upid=(isNaN(id)?0:id); 
    while(upid!=0){ 
        var upid=Data["a_row"][upid][1]; 
        if(path!="")path=upid+","+path;else path=upid; 
      } 
    } 
    catch(e){}; 
    return eval("["+path+"]"); 
  } 
  //建立下列表 
  this.selectshowlevel=function(obj,upid,def){ 
    var selectobj,optionobj,havedef; 
    selectobj=document.getElementById(this.selectName+this.grade); 
    if(selectobj){ 
      document.getElementById(this.selectName+this.grade).options.length=0; 
    }else{ 
      selectobj=document.createElement("select"); 
      selectobj.id=this.selectName+this.grade; 
      selectobj.grade=this.grade; 
      selectobj.obj=this; 
      selectobj.onchange=function(){ 
        if(this.options[this.selectedIndex].value!=""){ 
          this.obj.selectshow(obj,this[this.selectedIndex].value); 
        } 
        else{ 
         if(this.obj.grade>0){   
            for(var i=this.grade+1;i<this.obj.grade-1;i++){ 
              var df=document.getElementById(this.obj.selectName+i); 
              df.options.length=0; 
              defaultoption(this.obj,df,i); 
              } 
            //最得值 
            getvalue(this.obj); 
          } 
        } 
      } 
    } 
    defaultoption(this,selectobj,this.grade); 
    //显示级别下数据 
    if(upid>=0){ 
    for(var j=0;j<Data["a_record"].length;j++){ 
      thisrecord=Data["a_row"][Data["a_record"][j]]; 
      if(thisrecord[1]==upid){ 
        optionobj=document.createElement("option"); 
        optionobj.text=thisrecord[0]; 
        optionobj.value=Data["a_record"][j]; 
        selectobj.options.add(optionobj); 
        if(def==Data["a_record"][j]) havedef=true; 
    } 
  } 
  } 
  if(havedef)selectobj.value=def; 
  return selectobj; 
} 

this.selectshow = function(obj,id){ //显示选中记录号 
  var selectobj,optionobj,thisrecord; 
  var lastgrade,tempid=id,tempgrade; 
  var fontpath=this.getfontpath(id); 
  tempgrade=this.grade; 
  this.grade=0; 
  //显示选中前部分内容 
  for (var i=0;i<fontpath.length;i++){ 
    if(!document.getElementById(this.selectName+this.grade)){ 
      if(i<fontpath.length-1) 
        this.Add(obj,this.selectshowlevel(obj,fontpath[i],fontpath[i+1])); 
      else 
        this.Add(obj,this.selectshowlevel(obj,fontpath[i],id)); 
    } 
    this.grade++; 
  } 
  //显示选中后部分内容 
  do{ 
  lastgrade=this.selectshowlevel(obj,tempid); 
  tempid=lastgrade.value; 
  if (tempid=="")tempid=-1; 
  this.Add(obj,lastgrade); 
  this.grade++; 
  } 
  while(lastgrade.options.length>0); 
  //删除多余选项 
  for(i=this.grade-1;i<tempgrade-1;i++){ 
    obj.removeChild(document.getElementById(this.selectName+i)); 
  } 
  //最得值 
  getvalue(this); 
} 

this.Add=function(obj,s){ 
  if(s.options.length>0&&!document.getElementById(s.id))obj.appendChild(s); 
  } 
  //获取选择值 
  function getvalue(obj){ 
    var sel 
    obj.text=""; 
    obj.idvalue=0; 
    for(var i=0;i<obj.grade-1;i++){ 
      sel=document.getElementById(obj.selectName+i); 
      if(sel.value!=""){ 
        obj.text+=(obj.text.match("\\S")==null?"":obj.listseparator)+sel.options[sel.selectedIndex].text; 
        obj.idvalue=sel.options[sel.selectedIndex].value; 
        }else{break;} 
      } 
  } 
  //级别显示数据 
  function defaultoption(obj,sobj,g){ 
    try{ 
      if(obj.noselectshow[g]){ 
        optionobj=document.createElement("option"); 
        optionobj.text=obj.noselectshow[g]; 
        optionobj.value=""; 
        sobj.options.add(optionobj,0); 
        } 
      } 
      catch(e){} 
  } 
} 

address_test.htm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
"http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<title>Untitled Document</title> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
</head> 

<body> 
<script type="text/javascript" src="Address.js"></script> 
</body> 
</html> 



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