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(2) "81"
  ["name"] => string(12) "手持观测"
  ["url"] => string(39) "/products/night-visions/td2jg?catids=81"
  ["pid"] => string(2) "13"
}

array(4) {
  ["id"] => string(3) "334"
  ["name"] => string(14) "TD三代系列"
  ["url"] => string(27) "/products/night-visions/td3"
  ["pid"] => string(0) ""
}