How to Get Google Maps API Key for FREE (Step
SetupyourAPIkey·SearchforEnvironmentVariablesinthesystemsettings·EditeitherUservariables(forcurrentuser)orSystemvariables(forall ...,ThekeyStringmapstotheAPIkeyfieldintheGoogleCloudconsole.YoucancalltheGetKeyStringmethodtogetthekeyStringforanAPIk...。參考影片的文章的如下: