我在我的ac#console应用程序代码中收到此错误
case 5:
Console.WriteLine("User selected to Quit, option " + response);
Environment.Exit;
break;
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//错误只有赋值,调用,递增,递减和新对象表达式才能用作语句
//the code
parseAttempt = while (KeyBoardInput, out Response);
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