整数值后的尾随百分比字符

Trailing percent character after integer value

这行中的百分比字符是什么意思:

Console.WriteLine(50% + 50%)

输出:

100

Hans Passant评论中的link提到了它:

Literals can also use the identifier type characters (%, &, @, !, #, $), as can variables, constants, and expressions.