通过查看platform\build\core\version_defaults.mk ，ifeq "" "$(PLATFORM_VERSION)" # This is the canonical definition of the platform version, # which is the version that we reveal to the end user. # Update this value when the platform version changes (rather # than overriding it somewhere else). Can be an arbitrary string. PLATFORM_VERSION := 4.3.2.1.000.000 endififeq "" "$(PLATFORM_SDK_VERSION)" # This is the canonical definition of the SDK version, which defines # the set of APIs and functionality available in the platform. It # is a single integer that increases monotonically as updates to # the SDK are released. It should only be incremented when the APIs for # the new release are frozen (so that developers don't write apps against # intermediate builds). During development, this number remains at the # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds # the code-name of the new development work. PLATFORM_SDK_VERSION := 18 endif得知，我的PLATFORM_VERSION := 4.3.2.1.000.000 PLATFORM_SDK_VERSION := 18
# This is the canonical definition of the platform version,
# which is the version that we reveal to the end user.
# Update this value when the platform version changes (rather
# than overriding it somewhere else). Can be an arbitrary string.
PLATFORM_VERSION := 4.3.2.1.000.000
endififeq "" "$(PLATFORM_SDK_VERSION)"
# This is the canonical definition of the SDK version, which defines
# the set of APIs and functionality available in the platform. It
# is a single integer that increases monotonically as updates to
# the SDK are released. It should only be incremented when the APIs for
# the new release are frozen (so that developers don't write apps against
# intermediate builds). During development, this number remains at the
# SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds
# the code-name of the new development work.
PLATFORM_SDK_VERSION := 18
endif得知，我的PLATFORM_VERSION := 4.3.2.1.000.000
PLATFORM_SDK_VERSION := 18