array(4) {
  ["id"] => string(2) "13"
  ["name"] => string(12) "产品中心"
  ["url"] => string(48) "/products/thermographys-tools/ptseries?catids=77"
  ["pid"] => string(1) "0"
}

array(4) {
  ["id"] => string(3) "223"
  ["name"] => string(12) "数码夜视"
  ["url"] => string(33) "/products/digital/dn30?catids=223"
  ["pid"] => string(2) "13"
}

array(4) {
  ["id"] => string(3) "266"
  ["name"] => string(4) "DN30"
  ["url"] => string(22) "/products/digital/dn30"
  ["pid"] => string(0) ""
}