告警为:Exception unhandled:System。DivideByZeroException: '试图除以零。'代码是这样的:
Console.Write("Enter the number: ");
int A =Convert.ToInt32(Console.ReadLine());
bool flag = false;
if (A < 2)
{
Console.WriteLine($"{A} is a prime number!! ");
}
for (int i = 0; i < A; i++)
{
if (A % i == 0)
{
flag = true; break;
}
}
if (flag == true)
{
Console.WriteLine($"{A} is not a prime number!!");
}
else
{
Console.WriteLine($"{A} is a prime number !!");
}
Console.ReadKey();
% 0将生成一个DivideByZeroException。以i = 1开始循环
首先A % 0将报告一个异常,将i=0设置为i=1,如果您想获得特定的异常信息,请将其包装在"try…catch"代码块
try{
for (int i = 1; i < A; i++)
{
if (A % i == 0)
{
flag = true; break;
}
}
}catch(Exception ex){
Console.WriteLine("Exception caught: {0}", ex);
}