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三則簡單的 C# 考題
下面有三則簡單的 C# 程式，猜猜最後的結果為何?。
( 最重要的往往都是最基本的 ^_^ )
第一題：
class Program { public static void Main() { try { double a = 1; double b = 0; double c = a / b; Console.WriteLine(c); } catch (DivideByZeroException ex) { Console.WriteLine("catch DivideByZeroException"); } catch (Exception ex) { Console.WriteLine("catch Exception"); } } }
第二題：
class Program { public int GetNum() { int a = 1; int b = 0; try { return a / b; } catch { return -1; } finally { return 0; } } public static void Main() { Program p = new Program(); Console.WriteLine(p.GetNum()); } }
第三題：
class Program { public int GetNum() { int ret = 1; try { return ret; } catch { return 0; } finally { ret++; } } public static void Main() { Program p = new Program(); Console.WriteLine(p.GetNum()); } }
posted on Sunday, December 24, 2006 12:56 PM
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re: 三則簡單的 C# 考題
= =
12/24/2007 2:36 PM |
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