问题
I'm interested in the different kinds of identifier cases, and what people call them. Do you know of any additions to this list, or other alternative names?
- myIdentifier : Camel case (e.g. in java variable names)
- MyIdentifier : Capital camel case (e.g. in java class names)
- my_identifier : Snake case (e.g. in python variable names)
- my-identifier : Kebab case (e.g. in racket names)
- myidentifier : Flat case (e.g. in java package names)
- MY_IDENTIFIER : Upper case (e.g. in C constant names)
回答1:
Names are either generic, after a language, or colorful; most don’t have a standard name outside of a specific community.
There are many names for these naming conventions (names for names!); see Naming convention: Multiple-word identifiers, particularly for CamelCase (UpperCamelCase, lowerCamelCase). However, many don’t have a standard name. Consider the Python style guide PEP 0008 – it calls them by generic names like “lower_case_with_underscores”.
One convention is to name after a well-known use. This results in:
- PascalCase
- MACRO_CASE (C preprocessor macros)
…and suggests these names, which are not widely used:
- c_case (used in K&R and in the standard library, like size_t)
- lisp-case, css-case
- COBOL-CASE
Alternatively, there are illustrative names, of which the best established is CamelCase. snake_case is more recent (2004), but is now well-established. kebab-case is yet more recent and still not established, and may have originated on Stack Overflow! (What's the name for dash-separated case?) There are many more colorful suggestions, like caterpillar_case, Train-case, caravan-case, etc.
回答2:
- Flat case:
myvariable - Kebab case:
my-variable(this is the most famous. Other names include: caterpillar case, dash case, hyphen case, lisp case, spinal case and css-case) - Camel case:
myVariable - Pascal case:
MyVariable(other names: capital camel case) - Snake case:
my_variable(other names: c case) - Macro case:
MY_VARIABLE(other names: upper case) - Cobol case:
COBOL-CASE(other names: Train case)
来源：https://stackoverflow.com/questions/17326185/what-are-the-different-kinds-of-cases