C# 编程/关键字/unchecked

unchecked 关键字在进行整数算术运算时阻止溢出检查。 它可以用作单个表达式的运算符，也可以用作整块代码的语句。

int x, y, z;
x = 1222111000;
y = 1222111000;

// used as an operator
z = unchecked(x*y);

// used as a statement
unchecked {
  z = x*y;
  x = z*z;
}

C# 关键字
abstract as base bool break byte case catch char checked class const continue decimal default delegate do double else enum event explicit extern false finally fixed float for foreach goto if implicit in int interface internal is lock long namespace new null object operator out override params private protected public readonly ref return sbyte sealed short sizeof stackalloc static string struct switch this throw true try typeof uint ulong unchecked unsafe ushort using var virtual void volatile while
特殊的 C# 标识符（上下文关键字）
add alias async await dynamic get global nameof partial remove set value when where yield
上下文关键字（在查询中使用）
ascending by descending equals from group in into join let on orderby select where