效果
![](https://img.haomeiwen.com/i14498479/4b384cf40d5c96d5.jpg)
代码
Console.WriteLine("请输入年龄");
int nl = Convert.ToInt32(Console.ReadLine());
if(nl>=18)
{
Console.WriteLine("可以查看");
}
else if (nl < 10)
{
Console.WriteLine("不允许查看");
}
else
{
Console.WriteLine("是否继续查看(yes、no)");
string ck = Console.ReadLine();
if (ck == "yes")
{
Console.WriteLine("请查看");
}
else if (ck == "no")
{
Console.WriteLine("退出,你放弃查看");
}
}
Console.ReadLine();
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