string message = null;
if (message == null)
{
throw new ArgumentNullException('message');
}
转载于:https://www.cnblogs.com/XiaoMing999/p/5389813.html
string message = null;
if (message == null)
{
throw new ArgumentNullException('message');
}
转载于:https://www.cnblogs.com/XiaoMing999/p/5389813.html