仙人掌的刺

摘要： #include#includeint main(){ unsigned int e_n = 0XFFFFFFFE, e_nt = ~e_n;//反 int n = sizeof(e_n); printf("%X\n", e_nt);//十六进制 unsigned int a = 0X00001111,b = a & e_n;//与 printf("%X\n", b); unsigned int c = e_n | a;//或 printf("%X\n", c); unsigned int d = e_n ^ a;//异或 p 阅读全文