C言語8進数と16進数

1賦の値.

int dex = 100;//      
int oct = 0144;//    ， 0  
int hex = 0x64;//     ， 0x  

にしゅつりょく

void show(int x)
{
    printf("dec = %d; octal = %o; hex = %x
",x,x,x);
    printf("dec = %d; octal = %#o; hex = %#x
",x,x,x);
}

例:

int num = 100;
show(num);

出力結果:
dec = 100; octal = 144; hex = 64
dec = 100; octal = 0144; hex = 0x64