array(4) {
  ["id"] => string(2) "15"
  ["name"] => string(12) "服务支持"
  ["url"] => string(35) "/service/services/technical-support"
  ["pid"] => string(1) "0"
}

array(4) {
  ["id"] => string(2) "17"
  ["name"] => string(12) "售后服务"
  ["url"] => string(35) "/service/services/technical-support"
  ["pid"] => string(2) "15"
}

array(4) {
  ["id"] => string(2) "42"
  ["name"] => string(12) "故障自查"
  ["url"] => string(34) "/service/services/self-examination"
  ["pid"] => string(0) ""
}