C中字符串常量和字符串文字有什么区别？

Question

What's the difference between a String Constant and String Literal in plain C?

This question is similar to another: What's the difference between a string constant and a string literal? ...except that one was regarding Objective-C (using NSString) and not C.

Answer 1

In the C99 Draft from 2007 the term sting literal is used. The term string constant does not appear in the draft at all.

I find string literal to be a good term choice when talking about "foo" (just as 42 is a literal number, "foo" is a literal string).

Answer 2

They are one and the same. Merely a preference in which word you use to describe the string.

Answer 3

The spelling of the second word used to describe the same idea?

I would regard them as the same thing - alternative terms for the same construct.

Answer 4

const char * strConst;
strConst = "Hello World";

In this example

• strConst is a string constant.
• "Hello World" is a string literal, and is typically stored in the read only area of the program.

Answer 5

文字和常量意味着相同，这是在源代码中表示固定值的符号。