C# 中用户定义的异常示例
csharpprogrammingserver side programming更新于 2025/9/25 12:07:17
异常是指程序执行过程中出现的问题。C# 异常是对程序运行时出现的异常情况(例如尝试除以零)的响应。
定义您自己的异常。用户定义的异常类派生自 Exception 类。
下面是一个例子 −
示例
using System;
namespace UserDefinedException {
class TestFitness {
static void Main(string[] args) {
Fitness f = new Fitness();
try {
f.showResult();
} catch(FitnessTestFailedException e) {
Console.WriteLine("User defined exception: {0}", e.Message);
}
Console.ReadKey();
}
}
}
public class FitnessTestFailedException: Exception {
public FitnessTestFailedException(string message): base(message) {
}
}
public class Fitness {
int points = 0;
public void showResult() {
if(points < 110) {
throw (new FitnessTestFailedException("Player failed the fitness test!"));
} else {
Console.WriteLine("Player passed the fitness test!");
}
}
}
上面，我们创建了一个用户定义的异常−
public class FitnessTestFailedException: Exception {
public FitnessTestFailedException(string message): base(message) {
}
