OperateResultConvertFailedT1, T2 方法

将当前的结果对象转换到指定泛型的结果类对象，直接返回指定泛型的失败结果类对象
Convert the current result object to the result class object of the specified generic type, and directly return the result class object of the specified generic type failure

public OperateResult<T1, T2> ConvertFailed<T1, T2>()

Public Function ConvertFailed(Of T1, T2) As OperateResult(Of T1, T2)

public:
generic<typename T1, typename T2>
OperateResult<T1, T2>^ ConvertFailed()

member ConvertFailed : unit -> OperateResult<'T1, 'T2>