<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
#city {
width: 100px;
}
</style>
</head>
<body>
<select id="city">
</select>
<script>
var towers = {
gd: {
gz: {
th: '天河区',
fy: '番禹区'
},
sz: {
lg: '龙岗区',
fg: '凤岗区'
}
},
gx: {
gg: {
zj: '湛江镇',
qx: '桥圩镇'
},
yl: {
sx: '山心镇',
sn: '石南镇'
}
},
gzhou: {
gy: {
nm: '南明区',
by: '白云区'
},
dy: {
hs: '惠水县',
xt: '平塘镇'
}
}
}
var a=document.getElementById('city');
var tower=towers[this.getAttribute('value')];
var towe =tower[this.getAttribute('value')];
for (var key in towe) {
var b=document.createElement('option');
b.setAttribute('value',key);
b.innerHTML=towe[key];
a.appendChild(b);
}
console.log(towe);
</script>
</body>
</html>
田心枫
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