1.
ϴ , ѹ ϳ ְ ٸ ٲ ִ ǹϴµ, ݵ ̸ پ ֵ Ǿ ִ. c α Ϸ ̸ ϴµ ̷ ̸ ĺ Ǵ Ī̶ Ѵ. ̷ Ī Ӹ ƴ϶, ο Լ ϰų ο ʿѵ c Ī Ģ ° Ѵ.
- (a~z, A~Z), (0~9), under score(_) Ͽ Ѵ - ϳ ̸ȿ Ҽ . - ù ڴ ݵ ̾ ϸ, under score ڿ óȴ. - ҹڰ еȴ. - Ҽ .
: auto, register, double, entry, typedef, union, break, return, short, extern, float, unsigned, case, continue, sizeof, for, goto, while, char, default, static, struct, if, long, do, else, switch, int .
2. ( Ÿ)
- int : - double : Ǽ - float : Ǽ - char :
Ҽΰ Ѵ. ٸ Ͽ ϴµ ũⰡ Ŭ ǥҼ ִ ũ. sigend ǥҼ unsinged ǥҼ ִ. unnsiged ɼ ִ Ѵ. int 1,2. (-32768 ~ 32767) 16Ʈ short 1,2.(-32768 ~ 32767) 16Ʈ long 1,2.(-2147483648~2147483647) 32Ʈ Unsigned int 1,2.(0~65535) 32Ʈ Unsigned short 1,2.(0~65535) 32Ʈ Unsigned long 1,2.(0~4294967295) 32Ʈ
Ǽ Ҽΰ ִ ϸ ſ ū ǥ̳ óϱ ϴ. ũⰡ Ŭ ǥҼ ִ е Ŀ. float 32Ʈ(Ҽ 6ڸ ǥ) double 64Ʈ(Ҽ 14ڸ ǥ) long double80Ʈ(Ҽ 19ڸ ǥ)
C ʹ ϳ ڸ ǹϸ unsigned پִ Ͱ ִ. ڸ ǻͿ ǥϷ Ư ڵ带 Ͽ ϴµ c ڵ ASCII ̸ ڵ带 ϰ ִ. ASCII ڵ 7bit ڸ Ÿ ϴµ ⺻ 1byte̱ 8bit ڸ Ÿ Ѵ. ڵ 2 ̰ c ƿ ȴ. 1byte ũ⸦ ϰ ̴. c ũⰡ 1byte ϸ ȴ. char (-128~127)8Ʈ unsigned char (0~255)8Ʈ
3. 뿹
int a = 123 ; char b = "edplus" ; float c = 123.123 ;
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