参考：http://www.100sucai.com/demo.php?id=171
<script>
let NVcity = {}
NVcity.allCity = [ //待完整城市
'北京|beijing|bj',
'上海|shanghai|sh',
'重庆|chongqing|cq',
'深圳|shenzhen|sz',
'广州|guangzhou|gz',
'杭州|hangzhou|hz',
'南京|nanjing|nj',
'苏州|shuzhou|sz',
'天津|tianjin|tj',
'成都|chengdu|cd',
'南昌|nanchang|nc',
'三亚|sanya|sy',
'青岛|qingdao|qd',
'厦门|xiamen|xm',
'西安|xian|xa',
'长沙|changsha|cs',
'合肥|hefei|hf',
'西藏|xizang|xz',
'内蒙古|neimenggu|nmg',
'安庆|anqing|aq',
'阿泰勒|ataile|atl',
'安康|ankang|ak',
'阿克苏|akesu|aks',
'包头|baotou|bt',
'北海|beihai|bh',
'百色|baise|bs',
'保山|baoshan|bs',
'长治|changzhi|cz',
'长春|changchun|cc',
'常州|changzhou|cz',
'昌都|changdu|cd',
'朝阳|chaoyang|cy',
'常德|changde|cd',
'长白山|changbaishan|cbs',
'赤峰|chifeng|cf',
'大同|datong|dt',
'大连|dalian|dl',
'达县|daxian|dx',
'东营|dongying|dy',
'大庆|daqing|dq',
'丹东|dandong|dd',
'大理|dali|dl',
'敦煌|dunhuang|dh',
'鄂尔多斯|eerduosi|eeds',
'恩施|enshi|es',
'福州|fuzhou|fz',
'阜阳|fuyang|fy',
'贵阳|guiyang|gy',
'桂林|guilin|gl',
'广元|guangyuan|gy',
'格尔木|geermu|gem',
'呼和浩特|huhehaote|hhht',
'哈密|hami|hm',
'黑河|heihe|hh',
'海拉尔|hailaer|hle',
'哈尔滨|haerbin|heb',
'海口|haikou|hk',
'黄山|huangshan|hs',
'邯郸|handan|hd',
'汉中|hanzhong|hz',
'和田|hetian|ht',
'晋江|jinjiang|jj',
'锦州|jinzhou|jz',
'景德镇|jingdezhen|jdz',
'嘉峪关|jiayuguan|jyg',
'井冈山|jinggangshan|jgs',
'济宁|jining|jn',
'九江|jiujiang|jj',
'佳木斯|jiamusi|jms',
'济南|jinan|jn',
'喀什|kashi|ks',
'昆明|kunming|km',
'康定|kangding|kd',
'克拉玛依|kelamayi|klmy',
'库尔勒|kuerle|kel',
'库车|kuche|kc',
'兰州|lanzhou|lz',
'洛阳|luoyang|ly',
'丽江|lijiang|lj',
'林芝|linzhi|lz',
'柳州|liuzhou|lz',
'泸州|luzhou|lz',
'连云港|lianyungang|lyg',
'黎平|liping|lp',
'连成|liancheng|lc',
'拉萨|lasa|ls',
'临沧|lincang|lc',
'临沂|linyi|ly',
'芒市|mangshi|ms',
'牡丹江|mudanjiang|mdj',
'满洲里|manzhouli|mzl',
'绵阳|mianyang|my',
'梅县|meixian|mx',
'漠河|mohe|mh',
'南充|nanchong|nc',
'南宁|nanning|nn',
'南阳|nanyang|ny',
'南通|nantong|nt',
'那拉提|nalati|nlt',
'宁波|ningbo|nb',
'攀枝花|panzhihua|pzh',
'衢州|quzhou|qz',
'秦皇岛|qinhuangdao|qhd',
'庆阳|qingyang|qy',
'齐齐哈尔|qiqihaer|qqhe',
'石家庄|shijiazhuang|sjz',
'沈阳|shenyang|sy',
'思茅|simao|sm',
'铜仁|tongren|tr',
'塔城|tacheng|tc',
'腾冲|tengchong|tc',
'台州|taizhou|tz',
'通辽|tongliao|tl',
'太原|taiyuan|ty',
'威海|weihai|wh',
'梧州|wuzhou|wz',
'文山|wenshan|ws',
'无锡|wuxi|wx',
'潍坊|weifang|wf',
'武夷山|wuyishan|wys',
'乌兰浩特|wulanhaote|wlht',
'温州|wenzhou|wz',
'乌鲁木齐|wulumuqi|wlmq',
'万州|wanzhou|wz',
'乌海|wuhai|wh',
'兴义|xingyi|xy',
'西昌|xichang|xc',
'襄樊|xiangfan|xf',
'西宁|xining|xn',
'锡林浩特|xilinhaote|xlht',
'西双版纳|xishuangbanna|xsbn',
'徐州|xuzhou|xz',
'义乌|yiwu|yw',
'永州|yongzhou|yz',
'榆林|yulin|yl',
'延安|yanan|ya',
'运城|yuncheng|yc',
'烟台|yantai|yt',
'银川|yinchuan|yc',
'宜昌|yichang|yc',
'宜宾|yibin|yb',
'盐城|yancheng|yc',
'延吉|yanji|yj',
'玉树|yushu|ys',
'伊宁|yining|yn',
'珠海|zhuhai|zh',
'昭通|zhaotong|zt',
'张家界|zhangjiajie|zjj',
'舟山|zhoushan|zs',
'郑州|zhengzhou|zz',
'中卫|zhongwei|zw',
'芷江|zhijiang|zj',
'湛江|zhanjiang|zj'
]
NVcity.regEx = /^([\u4E00-\u9FA5\uf900-\ufa2d]+)\|(\w+)\|(\w)\w*$/i //正则
// NVcity.regExChiese = /([\u4E00-\u9FA5\uf900-\ufa2d]+)/
let value = '北' //输入框value
function aa() {
if (value !== '') {
var reg = new RegExp('^' + value + '|\\|' + value, 'gi')
// 此处需设置中文输入法也可用onpropertychange
var searchResult = []
var str
for (var i = 0, n = NVcity.allCity.length; i < n; i++) {
if (reg.test(NVcity.allCity[i])) {
var match = NVcity.regEx.exec(NVcity.allCity[i])
if (searchResult.length !== 0) {
str = match[1]
} else {
str = match[1]
}
searchResult.push(str)
}
}
console.log(searchResult)
}
}
aa()
</script>
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