MqttRpcDeviceReadDoubleAsync 方法 (String)

public Task<OperateResult<double>> ReadDoubleAsync(
	string address
)

Public Function ReadDoubleAsync ( 
	address As String
) As Task(Of OperateResult(Of Double))

public:
virtual Task<OperateResult<double>^>^ ReadDoubleAsync(
	String^ address
) sealed

abstract ReadDoubleAsync : 
        address : string -> Task<OperateResult<float>> 
override ReadDoubleAsync : 
        address : string -> Task<OperateResult<float>> 

MelsecMcNet melsec_net = new MelsecMcNet( "192.168.0.100", 6000 );

// 以下是简单的读取，没有仔细校验的方式
double d100 = (await melsec_net.ReadDoubleAsync( "D100" )).Content;

// 如果需要判断是否读取成功
OperateResult<double> R_d100 = await melsec_net.ReadDoubleAsync( "D100" );
if (R_d100.IsSuccess)
{
    // success
    double value = R_d100.Content;
}
else
{
    // failed
}