2.6 C # identifier naming conventions

naming rules for C # identifiers

The variable name, constant name, class name, and method name in the program are called identifiers . C # has a set of naming rules for identifiers, and errors occur if you do not follow the rules when naming them. This set of rules is simply said to have the following three articles:

① identifiers can only be made up of English letters, numbers, and underscores, and cannot contain spaces and other characters.

Incorrect identifier declaration:string $user; //错在使用了其他字符

The ② variable name cannot begin with a number.

Incorrect identifier declaration:double 6h;//错在用数字开头

③ cannot use keywords as variable names.

Incorrect identifier declaration:char static ;//错在用关键字static做变量名

2.6 C # identifier naming conventions