IntegrationFileClientIsFileExistsAsync 方法

public Task<OperateResult<bool>> IsFileExistsAsync(
	string fileName,
	string factory,
	string group,
	string id
)

Public Function IsFileExistsAsync ( 
	fileName As String,
	factory As String,
	group As String,
	id As String
) As Task(Of OperateResult(Of Boolean))

public:
Task<OperateResult<bool>^>^ IsFileExistsAsync(
	String^ fileName, 
	String^ factory, 
	String^ group, 
	String^ id
)

member IsFileExistsAsync : 
        fileName : string * 
        factory : string * 
        group : string * 
        id : string -> Task<OperateResult<bool>>