Q: What is strong-typing versus weak-typing Which is preferred, Why 要注意是强类型和弱类型,很多人容易将此与静态语言和动态语言的混淆。静态语言在编译时检查变量类型,动态语言在运行时检查变量类型。但这不是强类型和弱类型的区别。 弱类型语言允许将一块内存看做多种类型。比如直接将整型变量与字符变量相加。
That all sounds fine to me in theory. It makes sense that the sooner I find programming errors the better. Strong typing helps me find errors at compile time. Weak typing makes me wait until a runtime exception is thrown. The trouble is that I use Mailman, a mailing list manager written...
Historically, "strong typing" has been associated with static typing. Languages noted for strong typing include Pascal and Ada; languages noted for weak typing (most notoriously BASIC) had primarily dynamic typing. But the language thatoughtto be most notorious for weak typing has static typing: C...
Weak vs. Strong typing项目 2005/01/17 Yes, I know already what you've been thinking, but this post isn't about programming languages. It's about search. We live today in an ocean of information. Too much information we can ever cope for. But, in some sense this information is ...
pythonstrong-typingweak-typing 15 据我理解,以下的写法在PHP中是被允许的,因为PHP是一种弱类型语言。 $var = 'Hello'; $var = 5; 我刚刚安装了一个Windows版本的Python 2.6,我本来以为它不会让我像那样轻易地改变类型,但是上面代码的Python等效代码就像PHP一样运行,吓人!
Strong vs Weak Data Typing Systems Strong/weak data types are how a language handles the values it operates on. Will the language quietly make some assumptions when working with the data types and help you out, or will it just stop and complain that it doesn’t know what to do? Let’s...
Strong typing Now let’s talk about strong vs. weak typing. Contrary to some beliefs, strong does not equal static. As a matter of fact, these type systems are independent of each other. There can be static but weak type system (for example C and C++). Also dynamically, but strongly ...
strong typing (programming) Strict enforcement oftyperules with no exceptions. Incorrect type usage can be detected either atrun timeor atcompile time. Strong typing catches more type errors thanweak typing, resulting in fewer hard errors. In a strongly typed language, conversion between types requi...
Static vs. dynamic is about whether or not types are known at compile-time. C++ is a static language, because all objects have a particular type at compile-time. You can't change thesame objectfrom a Foo to a Bar at run-time. However, parts of C++ haveweaktyping, because when you ...