70-536 全真模擬試験 DEMO

問題1: You are developing an application to perform mathematical calculations. You develop a class named
CalculationValues. You write a procedure named PerformCalculation that operates on an instance of the
class.
You need to ensure that the user interface of the application continues to respond while calculations are
being performed. You need to write a code segment that calls the Perform Calculation procedure to
achieve this goal.
Which code segment should you use?
A. public ref class CalculationValues {...};
public ref class Calculator {
public :
void PerformCalculation(Object= values) {}
};
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
Thread= newThread = gcnew Thread(
gcnew ParameterizedThreadStart(calc,
&Calculator::PerformCalculation));
newThread->Start(myValues);
}
};
B. public ref class CalculationValues {...};
public ref class Calculator {
public :
void PerformCalculation() {}
};
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
ThreadStart= delStart = gcnew
ThreadStart(calc, &Calculator::PerformCalculation);
Thread= newThread = gcnew Thread(delStart);
if (newThread->IsAlive) {
newThread->Start(myValues);
}
}
};
C. public ref class CalculationValues {...};
public ref class Calculator {
public :
void PerformCalculation(CalculationValues= values) {} };
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
Application::DoEvents();
calc->PerformCalculation(myValues);
Application::DoEvents();
}
};
D. public ref class CalculationValues {...};
public ref class Calculator {
public :
void PerformCalculation() {}
};
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
Thread= newThread = gcnew Thread(
gcnew ThreadStart(calc, &Calculator::PerformCalculation)); newThread->Start(myValues);
}
};
正解: A