问题
I've been searching about this for few days, but I think I only understand less than a half.
I'm creating a AutoIT application using Google Maps API V3 and free API key. When I add 1500 markers within 30 mins with 500~600ms delay each marker, my map won't be displayed anymore. It is just blank. I can't see the error message, but I think it's "OVER QUERY LIMIT". Usually it will become normal after few hours or on the next day. The map is normal if I run it from another site (different IP address). It's also normal if I open the Google map through Google Maps website.
I don't understand that, because I supply the direct coordinate, so it doesn't spend up the geocode limit (I think). From what I read, the free account is entitled to 2,500 geocodes per day, I don't even use the geocode for adding the marker.
What is actually the limit for this? How many markers I could put on a map in 1 hour and in a day and what is the delay for each marker? If I know exactly the limitation, I can try to arrange my script to obey that rules.
来源：https://stackoverflow.com/questions/20646956/how-to-raise-a-marker-limit-in-google-maps