c#捕获异常

捕获具体异常

//解决方法
private void button3_Click(object sender, EventArgs e)
{
    try
    {
        test2();
    }
    catch (Exception ex)
    {
        this.textBox1.Text = ex.ToString();
    }
}

private void test2()
{
    try
    {
        test();
    }
    catch (Exception ex)
    {
        //自定义异常
        throw new Exception("出错啦！", ex);
    }
}