Demo:
http://6yang.net/myjavascriptlib/selectArea/
var that = this;
var P = [], C = [], D = [];
P = ["北京","上海","天津","重庆","广东"];
C[0] = ["北京"];
C[1] = ["上海"];
C[2] = ["天津"];
C[3] = ["重庆"];
C[4] = ["广州","深圳","珠海","佛山","惠州","东莞","中山","江门","湛江","汕头"];
for(temp in C){
D[temp] = [];
}
D[0][0] = ["海淀,朝阳,东城,西城,崇文,宣武,丰台,石景山,房山,门头沟,通州,顺义,昌平,密云,怀柔,延庆,平谷,大兴,燕郊"];
D[1][0] = ["闵行,徐汇,长宁,静安,卢湾,虹口,黄浦,浦东,杨浦,闸北,普陀,嘉定,宝山,青浦,奉贤,南汇,崇明,金山,松江"];
D[2][0] = ["和平,西青,北辰,大港,南开,河东,河西,河北,津南,红桥,塘沽,汉沽,东丽,宝坻,蓟县,武清,宁河,静海,开发区"];
D[3][0] = ["南岸,渝北,万盛,大渡口,万州,北碚,沙坪坝,巴南,双桥,涪陵,江北,九龙坡,渝中"];
D[4][0] = ["荔湾,越秀,东山,天河,海珠,黄埔,芳村,白云,花都,番禺,东莞,广州经济技术开发区,从化,增城,萝岗,清远,南沙,佛山"];
D[4][1] = ["福田,罗湖,南山,盐田,宝安,龙岗"];
Demo:
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