var opt0 = ["一级分类|0", "二级分类|0", "三级分类|0"];
var dsy = new Dsy();
dsy.add("0", ["计算机|5"]);
dsy.add("0_0", ["IT认证|71"]);
dsy.add("0_0_0", ["思科认证|447","华为认证|449","Linux认证|455","思科认证cisco|1184"]);