net.minecraft.client.gui.screens.worldselection
类 class
CreateWorldScreen
CreateWorldScreen$1
CreateWorldScreen$2
CreateWorldScreen$3
CreateWorldScreen$4
CreateWorldScreen$5
CreateWorldScreen$6
EditWorldScreen
OptimizeWorldScreen
SelectWorldScreen
WorldSelectionList
WorldSelectionList$WorldListEntry
枚举 enum
CreateWorldScreen$SelectedGameMode