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"]);
dsy.add("0_0_0", ["日语|1266"]);
dsy.add("0_1", ["亚洲留学|349"]);
dsy.add("0_1_0", ["日本留学|750"]);