Since I started learning Objective C and Cocoa, I've been wondering why they have chosen the extension .m for the implementation files - was it supposed to mean something, or was it just a random letter? Does anyone know? I couldn't find such information anywhere on Google...
自从我开始学习Objective C和Cocoa以来，我一直在想他们为什么选择扩展.m作为实现文件——它应该是什么意思，还是只是一个随机的字母?有人知道吗?我在谷歌的任何地方都找不到这样的信息……
4 个解决方案
#1
413
Today most people would refer to them as "method files", but
今天，大多数人会把它们称为“方法文件”，但是。
"The .m extension originally stood for "messages" when Objective-C was first introduced, referring to a central feature of Objective-C [...]"
当Objective-C第一次被引入时，“.m扩展”最初代表“消息”，指的是Objective-C的一个中心特性[…]
(from the book "Learn Objective-C on the Mac" by Mark Dalrymple and Scott Knaster, page 9)
(从《学习Objective-C》中Mark Dalrymple和Scott Knaster，第9页)
EDIT: To satisfy an itch I emailed Brad Cox, the inventor of Objective-C, about the question and he answered with this single line:
编辑:为了满足一个渴望，我给Objective-C的发明者布拉德·考克斯(Brad Cox)发了一封电子邮件，问他关于这个问题的问题，他回答说:
"Because .o and .c were taken. Simple as that."
因为。o和。c被拿走了。就这么简单。”
Here's the email as visual proof:
这是电子邮件的视觉证明:
#2
8
It stands for "methods". From the comp.lang.objective-C FAQ:
它所代表的“方法”。从comp.lang。objective - c常见问题解答:
The organisation of Objective-C source is typically similar to that of C or C++ source code, with declarations and object interfaces going into header files named with a .h extension, and definitions and object implementations going in files named with a .m (short for methods) extension.
Objective-C源的组织通常类似于C或c++源代码，声明和对象接口进入以.h扩展名命名的头文件，以及以.m(方法)扩展名命名的文件中的定义和对象实现。
#3
4
.m files contain the (m)ethods. Possible reason?
.m文件包含(m)ethods。可能的原因?
#4
0
Wild guess: 1983 was ObjectC introduced along with the first Macintosh computer... . So it might be m as in macintosh or m as in methods or even both.
疯狂猜测:1983年是ObjectC和第一台Macintosh电脑一起推出的……。所以它可能是m，在麦金塔或m，在方法上，甚至是两者。
#1
413
Today most people would refer to them as "method files", but
今天，大多数人会把它们称为“方法文件”，但是。
"The .m extension originally stood for "messages" when Objective-C was first introduced, referring to a central feature of Objective-C [...]"
当Objective-C第一次被引入时，“.m扩展”最初代表“消息”，指的是Objective-C的一个中心特性[…]
(from the book "Learn Objective-C on the Mac" by Mark Dalrymple and Scott Knaster, page 9)
(从《学习Objective-C》中Mark Dalrymple和Scott Knaster，第9页)
EDIT: To satisfy an itch I emailed Brad Cox, the inventor of Objective-C, about the question and he answered with this single line:
编辑:为了满足一个渴望，我给Objective-C的发明者布拉德·考克斯(Brad Cox)发了一封电子邮件，问他关于这个问题的问题，他回答说:
"Because .o and .c were taken. Simple as that."
因为。o和。c被拿走了。就这么简单。”
Here's the email as visual proof:
这是电子邮件的视觉证明:
#2
8
It stands for "methods". From the comp.lang.objective-C FAQ:
它所代表的“方法”。从comp.lang。objective - c常见问题解答:
The organisation of Objective-C source is typically similar to that of C or C++ source code, with declarations and object interfaces going into header files named with a .h extension, and definitions and object implementations going in files named with a .m (short for methods) extension.
Objective-C源的组织通常类似于C或c++源代码，声明和对象接口进入以.h扩展名命名的头文件，以及以.m(方法)扩展名命名的文件中的定义和对象实现。
#3
4
.m files contain the (m)ethods. Possible reason?
.m文件包含(m)ethods。可能的原因?
#4
0
Wild guess: 1983 was ObjectC introduced along with the first Macintosh computer... . So it might be m as in macintosh or m as in methods or even both.
疯狂猜测:1983年是ObjectC和第一台Macintosh电脑一起推出的……。所以它可能是m，在麦金塔或m，在方法上，甚至是两者。