Console.WriteLine("年龄");
string str_a=Console .ReadLine ();
int a=Convert.ToInt32 (str_a);
if (a>=18)
{
Console.WriteLine("可查看");
}
if (a<10)
{ Console.WriteLine("bu可查看");
}
if (a>=10&&a<18)
{ Console.WriteLine("是否查看"); }
Console.WriteLine("是否查看"); string fb=Console .ReadLine (); if (fb=="yes")