cheng_you_know

摘要： void change_add(){ // unsigned int a = 0xFFFFFFF7; unsigned char i = (unsigned char)a; char *b = (char *)&a; //此处将a的地址赋值给b，强制使得b的地址指向a而已， printf("%08x,%08x\n",i,*b);//还有一个区别，就是b指针的+1跨度是si... 阅读全文