HyperTalk:

很久很久以前就死了 没有简单的赋值(你不能说a:= 3，你必须说把3放进a 没有嵌套函数 没有真正的数据结构，只有字符串。要创建“列表”，您可以使用itemDelimiter分隔项并手动转义它们。你也可以得到行和单词比如txt的第5行第2个单词

说句题外话，我认为HyperTalk最酷的独特功能之一是特殊的it变量:

ask "How many years old are you?"
answer "You are " & it*12 & " months old."

c#中缺少预处理器。

我知道他们把它放在一边是因为有些人会滥用它，但我认为他们把孩子和洗澡水一起倒掉了。代码生成被认为是一件好事，在c++中，预处理程序是我的第一个代码生成器。

我刚刚发现，在c#中创建泛型方法时，我不能使用Enum作为类型约束。

微软有一个足够好的解释，但仍然。我疯了

public static T MyFunc<T>(string arg) where T:Enum //wont work :(

C#

它是一种很棒的语言，特别是在LINQ中，但是与c++相比泛型支持较差。它有如此多的潜力，但目前的实现只对强类型集合和类似的琐碎事情有用。下面举几个例子:

A generic argument cannot be restricted to enums (only classes or structs). A generic argument cannot be a static class. Why? This seems like a completely artifical restriction. You cannot specify that a generic type must have a constructor with a certain signature because you cannot have constructors on interfaces. Why not? It's just another method with the special name ".ctor". Similarly, you cannot specify that a generic type must have a static method, because those also cannot be declared on interface. Something like static T Parse(string s) would often come in useful. The compiler is too eager in prohibiting some casts which the programmer knows would actually work, so they require uglyness like (TheRealType)(object)value No covariance, eg. IList<string> cannot be converted to IList<object>, even though string[] can be converted to object[]. (Microsoft might be fixing this in C# 4.0, though.)

C

It's so flexible and powerful that it's really easy to write really awful, or downright dangerous code (or, if you prefer, "with great power comes great responsibility"). '=' for assignment, and '==' for equality; easy to confuse in 'if' statements. The implementation of a number of fundamental parts of the language are compiler-dependent; e.g. the size of the basic types, order of bits in bitfields, padding and byte order in unions. Bitfields aren't parameterisable (i.e. you can array of ints, but you can't have an array of bits). String handling could be improved.

Perl代表了一种可怕的语言。

No "public" or "private" or "protected" declarations/definitions. The "my $variable_name;" does not declare a global outside of a subroutine. The "my $variable_name;" gets accessed by subroutines but "use strict;" or other "use " creates warnings. Function prototypes end up unexplained, undemonstrated, unwanted, or some other excuse. Overzealous symbol use ends up "cool and quick" when reading globs of symbols. When one gets hot they like to stay hot, and need nothing to cool them. After a week of Perl, I end up unable to write a function and prototype it. What exactly is a module and does it actually NEED a ".pm" extension? If you want to create a public variable and access it from inside a subroutine, how do you accomplish this without creating a warning? Where do you find some neat scripts that teach one some neat Perl?