路由：Routing模块根据请求生成导航信息
输入：

• 地图数据
• 请求，包括：开始和结束位置

输出：

• 路由导航信息 Routing navigation information

0 前言

文件结构：

modules/routing/
├── BUILD
├── common
├── conf
├── core
├── cyberfile.xml
├── dag
├── graph
├── launch
├── proto
├── README_cn.md
├── README.md
├── routing.cc
├── routing_component.cc
├── routing_component.h
├── routing.h
├── strategy
├── tools
└── topo_creator

配置：

file path	type / struct	Description
modules/routing/conf/routing_config.pb.txt	apollo::routing::RoutingConfig	routing config
modules/routing/conf/routing.conf	gflags	gflags config

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