什么是M分别表示在C＃十进制的文字符号？ [英] What does the M stand for in C# Decimal literal notation?

问题描述

为了与十进制数据类型的工作，我有变量初始化做到这一点：

In order to work with decimal data types, I have to do this with variable initialization:

decimal aValue = 50.0M;

什么是M部代表什么？

What does the M part stand for?

推荐答案

这意味着它是一个十进制字面，正如其他人说。然而，起源可能不是那些在这个答案在别处建议。从 C＃标准批注（ECMA的版本，而不是MS版）：

It means it's a decimal literal, as others have said. However, the origins are probably not those suggested elsewhere in this answer. From the C# Annotated Standard (the ECMA version, not the MS version):

的小数后缀是因为D / D M / M
  已经采取的双击。
  虽然已建议在于M
  代表金钱，彼得·金果回忆说：
  那个M的简​​单选为下一
  在小数最好的信。

The decimal suffix is M/m since D/d was already taken by double. Although it has been suggested that M stands for money, Peter Golde recalls that M was chosen simply as the next best letter in decimal.

一个类似的注释中提到，C＃的早期版本包括Y和S为字节和短分别文字。他们投下不是有用经常的理由。

A similar annotation mentions that early versions of C# included "Y" and "S" for byte and short literals respectively. They were dropped on the grounds of not being useful very often.

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