google 地图 api 中多个路径的 URL 是什么

What is the URL for multiple paths in google maps api

我正在尝试启用两点之间的替代路线,我试过这个 link

http://maps.googleapis.com/maps/api/directions/json?origin=Chennai,%20Tamil%20Nadu,%20India&destination=Kodambakkam,%20Chennai,%20Tamil%20Nadu,%20India&sensor=false&alternatives=true

它没有提供任何替代方案 routes.i正在与 android 合作。谁能给我 URL 替代路线

http://maps.googleapis.com/maps/api/directions/json?origin=Chennai&destination=Mumbai&alternatives=true

它正在为我工​​作!检查这个