include stdio h main char a b ao

例： #include “stdio. h” main( ) { char a, b; a=‘o’; b=‘k’; putchar(a); putchar(b); putchar(‘n’); putchar(a); putchar(‘n’); putchar(b); putchar(‘n’); } 运行结果： ok o k

例4. 3 main( ) {unsigned int a=65535; int b=-2; printf(“a=%d, %o, %x, %un”, a, a); printf(“b=%d, %o, %x, %un”, b, b); } 输出结果： a = – 1, 177777, f f, 65535 b = – 2, 177776, f f f e, 65534 – 1的原码: 1 0 0 0 0 1 – 1的反码: 1 1 1 1 0 – 1的补码: 1 1 1 1 65535