var opt0 = ["一级分类|0", "二级分类|0", "三级分类|0"];
var dsy = new Dsy();
dsy.add("0", ["外语语言|1","出国留学|9"]);
dsy.add("0_0", ["小语种|21","日语韩语|22"]);
dsy.add("0_0_0", ["无子分类|0"]);
dsy.add("0_0_1", ["韩语|118"]);
dsy.add("0_1", ["亚洲留学|349"]);
dsy.add("0_1_0", ["韩国留学|751"]);