解析文件

txt

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// Save
FString Content = "xxx";
FString FileName = FPaths::ProjectIntermediateDir() + "xxx/xxx.txt";
FFileHelper::SaveStringToFile(Content, *FileName, FFileHelper::EEncodingOptions::ForceUTF8WithoutBOM);

// Load
TArray<FString> OutStrings;
if (FFileHelper::LoadANSITextFileToStrings(*FilePath, nullptr, OutStrings))
{
}

json

https://www.cnblogs.com/shiroe/p/14751769.html

ini

https://dev.epicgames.com/documentation/zh-cn/unreal-engine/configuration-files-in-unreal-engine?application_version=5.4

xml

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#include "XmlFile.h"

FString OutputFilePath = FPaths::ProjectIntermediateDir() + "xxx/xxx.xml";

const FString XmlTemplate = "<?xml version=\"1.0\" encoding=\"UTF - 8\"?>\n<root>\n</root>";
FXmlFile* XmlFile = new FXmlFile(XmlTemplate, EConstructMethod::ConstructFromBuffer);
if (!XmlFile->IsValid())
	return 0;

FXmlNode* XmlRoot = XmlFile->GetRootNode();
if (XmlRoot == nullptr)
	return 0;

// 添加
XmlRoot->AppendChildNode(xxx);

XmlFile->Save(OutputFilePath);
delete XmlFile;

excel

保存数据的类：

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USTRUCT()
struct FAssetLockedTable : public FTableRowBase
{
	GENERATED_BODY()
	
	UPROPERTY(EditAnywhere)
	FString PackageName;

	UPROPERTY(EditAnywhere)
	FString ReferencerName;

	UPROPERTY(EditAnywhere)
	FString OtherUserCheckedOutName;
};

保存cpp代码：

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UDataTable* DataTable = NewObject<UDataTable>();
DataTable->RowStruct = FAssetLockedTable::StaticStruct();
FAssetLockedTable RowData;
RowData.PackageName = "1";
RowData.ReferencerName = "2";
RowData.OtherUserCheckedOutName = "3";
DataTable->AddRow(FName("hebohang"), RowData);
const FString CSVString = DataTable->GetTableAsCSV();
FString CsvPath = FPaths::ProjectIntermediateDir() + TEXT("Test/AssetLockedTable.csv");
FFileHelper::SaveStringToFile(CSVString, *CsvPath, FFileHelper::EEncodingOptions::ForceUTF8);

生成 excel：