MqttRpcDeviceReadStringAsync 方法 (String, UInt16)

public virtual Task<OperateResult<string>> ReadStringAsync(
	string address,
	ushort length
)

Public Overridable Function ReadStringAsync ( 
	address As String,
	length As UShort
) As Task(Of OperateResult(Of String))

public:
virtual Task<OperateResult<String^>^>^ ReadStringAsync(
	String^ address, 
	unsigned short length
)

abstract ReadStringAsync : 
        address : string * 
        length : uint16 -> Task<OperateResult<string>> 
override ReadStringAsync : 
        address : string * 
        length : uint16 -> Task<OperateResult<string>> 

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
string d100_value = (await melsec_net.ReadStringAsync( "D100", 5 )).Content;

// 如果需要判断是否读取成功
OperateResult<string> R_d100_value = await melsec_net.ReadStringAsync( "D100", 5 );
if (R_d100_value.IsSuccess)
{
    // success
    string value = R_d100_value.Content;
}
else
{
    // failed
}