官方文档：https://learn.unrealengine.com/course/

张佳亮：UE4插件相关说明文档

1、uproject，以商城下载的ActionRPG为例

{
	"FileVersion": 3,
	"EngineAssociation": "4.20",
	"Category": "Samples",
	"Description": "",
	"Modules": [
		{
			"Name": "ActionRPG",
			"Type": "Runtime",
			"LoadingPhase": "Default"
		},
		{
			"Name": "ActionRPGLoadingScreen",
			"Type": "ClientOnly",
			"LoadingPhase": "PreL