NSIS (Nullsoft Scriptable安装系统)有StrCmp指令:

StrCmp str1 str2 jump_if_equal [jump_if_not_equal] 比较str1和str2(不区分大小写)。如果str1和str2相等，则Gotos jump_if_equal，否则Gotos jump_if_not_equal。 StrCmp $0“一个字符串”0 +3 DetailPrint '$$0 == "a string"' 转到+ 2 DetailPrint '$$0 != "a string"'

锦上添花:jump_if_equal和jump_if_not_equal也可以是负数。但我猜你们已经从正数前面的+符号中算出来了。我不记得这是强制性的，还是只是一个可怕的惯例。

这基本上结合了最差的BASIC和最差的Assembler。

我为客户端编写了一种编程语言(用于实验驱动定制硬件)，其中包含一些定制类型(Curl, Circuit，…)，每种类型只有2个值。它们可以隐式地转换为布尔值，但是(在客户机的请求下)可以在运行时更改此类类型常量的确切布尔值。

例如: Curl类型有2个可能的值:CW和CCW(顺时针和逆时针)。在运行时，你可以通过一个简单的赋值语句改变布尔值:

ccw := true

所以你可以改变所有这些类型值的布尔值。

在Ruby中，你可以用heredocs做一些奇怪的事情。考虑:

a = <<ONE
This is one. #{<<TWO}
This is two. #{<<THREE}
This is three.
THREE
TWO
ONE

p a # => "This is one. This is two. This is three.\n\n\n"

Haskell's use of Maybe and Just. Maybe a is a type constructor that returns a type of Just a, but Maybe Int won't accept just an Int, it requires it to be a Just Int or Nothing. So in essence in haskell parlance Just Int is about as much of an Int as an apple is an orange. The only connection is that Just 5 returns a type of Maybe Interger, which can be constructed with the function Just and an Integer argument. This makes sense but is about as hard to explain as it can theoretically be, which is the purpose of haskell right? So is Just really JustKindaLikeButNotAtAll yea sorta, and is Maybe really a KindaLooksLikeOrIsNothing, yea sorta again.

-- Create a function that returns a Maybe Int, and return a 5, which know is definitly Int'able
>  let x :: Maybe Int; x = 5;
<interactive>:1:24:
    No instance for (Num (Maybe Int))
      arising from the literal `5' at <interactive>:1:24
    Possible fix: add an instance declaration for (Num (Maybe Int))
    In the expression: 5
    In the definition of `x': x = 5

>  Just 5  
Just 5
it :: Maybe Integer

    -- Create a function x which takes an Int
>  let x :: Int -> Int; x _ = 0;
x :: Int -> Int
-- Try to give it a Just Int
>  x $ Just 5                   

<interactive>:1:4:
    Couldn't match expected type `Int' against inferred type `Maybe t'
    In the second argument of `($)', namely `Just 5'
    In the expression: x $ Just 5
    In the definition of `it': it = x $ Just 5

祝你好运读到这篇文章，我希望它是正确的。

在MATLAB(交互式数组语言，目前是TIOBE 20)中，有一个关键字end来表示数组的最后一个元素(它对应于NumPy -1)。这是一个众所周知的MATLAB语法:

myVar = myArray(end)

要从数组中间获取一个元素，通常可以这样写:

myVar = myArray( ceil( length(myArray)/2 ) )

令人惊讶的是，关键字end根本不是一个关键字，而是一种变量:

myVar = myArray( ceil( end/2 ) )

在c#中

Math.Round(2.5)==2