defaults write com.apple.systempreferences AttentionPrefBundleIDs 0
sudo defaults write /Library/Preferences/com.apple.SoftwareUpdate.plist LastUpdatesAvailable 0
sudo defaults write /Library/Preferences/com.apple.SoftwareUpdate.plist LastRecommendedUpdatesAvailable 0
sudo defaults delete /Library/Preferences/com.apple.SoftwareUpdate.plist RecommendedUpdates
killall Dock

运行完在偏好设置如果还有更新标志1，重启或注销即可。

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