var opt0 = ["一级分类|0", "二级分类|0", "三级分类|0"];
var dsy = new Dsy();
dsy.add("0", ["出国留学|9"]);
dsy.add("0_0", ["直接出国|202"]);
dsy.add("0_0_0", ["美国|259","加拿大|260","澳大利亚|261","新西兰|262","英国|263"]);