一,兩個例子: // This works
int foo = 43;
long lFoo = foo;
// This doesn't
object foo = (int)43;
long? nullFoo = foo as long?; // returns null
long lFoo = (long)foo; // throws InvalidCastException
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我正在嘗試使用VB.NET創建一個Quicksort基類,並將它放入一個IComparable元素的數組中。簽名是這樣的: public shared sub Sort(ByVal values() as IComparable)
然而,當我通過在雙打的數組,編譯器給我的錯誤。 Dim numbers(100) as double
Dim random as new Random(0)
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