http://blog.csdn.net/u010367582/article/details/50484428 http://www.cnblogs.com/milkmap/archive/2011/08/26/2154627.html 百度地图多点导航 https://www.google.com/search?q=driving.search%E5%A4%9A%E6%AC%A1%E8%B0%83%E7%94%A8&oq=driving.search%E5%A4%9A%E6%AC%A1%E8%B0%83%E7%94%A8&gs_l=psy-ab.3...6415.11629.0.11839.16.15.0.0.0.0.515.515.5-1.1.0....0...1.1j4.64.psy-ab..15.0.0.3JTz2i8JxpY