Why are parameters needed for initialization inside try and catch sections?

Question

I noticed that the C # compiler (.NET 4.5.2) does not allow me to compile the following code:

public void Test(out string value)
{
    //value = null;

    try
    {
        value = null;
    }
    catch (Exception ex)
    {
        //value = null;
    }
}

The following error failed:

The out value parameter must be assigned before the control removes the current method.

But if I uncomment the assignment in the section catch, it compiles successfully.
Obviously, it also compiles when I uncomment the assignment to the operator try.

So the question is: why is this not enough to initialize the parameter outinside the try block? . Why am I forced to initialize in a block catch?

Answer 1

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Answer 2

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Answer 3

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Answer 4

# Sepcification,

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