var oneArr=[['00','成都'],['01','绵阳'],['02','南充']] var towArr={ '00':[['000','武侯区'],['002','锦江区']], '01':[['003','游仙区'],['004','涪江区']], '02':[['005','顺庆区'],['006','高坪区'],['007','嘉陵区']] } var threeArr={ '000':[['0','街道1'],['1','街道2'],['2','街道3'],['3','街…