本文整理汇总了C#中Stock.Display方法的典型用法代码示例。如果您正苦于以下问题：C# Stock.Display方法的具体用法？C# Stock.Display怎么用？C# Stock.Display使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Stock的用法示例。
在下文中一共展示了Stock.Display方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: tstInheritance1
static void tstInheritance1()
{
Stock stock = new Stock { Name = "MSFT", SharesOwned = 1500 };
House house = new House { Name = "SAS", Mortgage = 2300 };
stock.Display();
house.Display();
//Upcasting
Stock stock2 = new Stock();
Asset asset = stock2;
Console.WriteLine((asset == stock2 ? "asset == stock2!" : "asset != stock2!"));
//asset.SharesOwned; - yet Stock fields aren't accessible!!!
//To access Stock fields DOWNCASTING is needed!!
Stock stock3 = (Stock) asset;
Console.WriteLine(stock3.SharesOwned); // <No error>
Console.WriteLine(stock3 == asset); // True
Console.WriteLine(stock3 == stock2); // True
//AS operator
Asset a = new Asset();
Stock s = a as Stock; // s is null; no exception thrown
try {
long shares1 = ((Stock)a).SharesOwned; // Approach #1
}
catch (InvalidCastException ice) {
Console.WriteLine(ice.ToString());
}
if (s != null) {
Console.WriteLine(s.SharesOwned);
long shares2 = (a as Stock).SharesOwned; // Approach #2
}
/*
* Another way of looking at it is that with the cast operator (Approach #1), you’re
saying to the compiler: “I’m certain of a value’s type; if I’m
wrong, there’s a bug in my code, so throw an exception!”
Whereas with the as operator (Approach #2), you’re uncertain of its type and
want to branch according to the outcome at runtime.
* */
//IS operator
if (a is Stock)
Console.WriteLine(((Stock)a).SharesOwned);
/*
* The is operator tests whether a reference conversion would succeed; in other words,
whether an object derives from a specified class (or implements an interface). It is
often used to test before downcasting.
* */
}