¼¸¸öC/C++ÃæÊÔÌâ - C/C++ / C++ ÓïÑÔ
¼¸¸öC/C++ÃæÊÔÌâ £±£© What is the size of the following structs struct foo{ int a; char[3] b; }; 2£© What is the size of class foo{ public: int a; char[3] b; void f(int i); }; £³£© What is the size of an object of type Y class X { public: int i; char j; }; class Y : public X{ public: int k; int p; };
×Ô¼º×ö£¬google ÄÚ´æ¶ÔÆë ÊÇÃæÊÔÌ⻹ÊÇ×÷ÒµÌâ? ´ó¸Å¿ÉÒÔËøÌûÁË 8 8 16 ³õ²½¿´¶¼ÊÇ8¡£¡£¡£ÒýÓà ³õ²½¿´¶¼ÊÇ8¡£¡£¡£ 8 8 16 ÇëÎʵÚÈýÌâÓ¦¸ÃÔõô·ÖÎö£¿ÒýÓà 8 8 16 ¼Ì³ÐÀ´µÄ¶«Î÷Ò²ÒªÕ¼¿Õ¼ä£¬Í¬ÑùÒªÔËÓÃÄÚ´æ¶ÔÆë·¨Ôò Õâ¸öÃæÊÔÌâÒ²Àã¼òµ¥ÁË£¡£¡ 8 8 16 ÓÃ¶ÔÆë·¨Ôò¼ÆËã¾Í¿ÉÒÔÁË!!
Ïà¹ØÎÊ´ð£º
дÁ˸ö²âÊÔ³ÌÐòÈçÏ struct hostent *hp; char AlarmDevIP[20]; int x2; hp = gethostbyname("www.google.com"); if (hp) {
......
±¾ÈËÕýÔÚÓÃJava×öÒ»¸öC/S¼Ü¹¹µÄÏîÄ¿£¬ ¿ÉÊÇÓÉÓÚÏîÄ¿±È½Ï´ó£¬Ç°ÆÚ¶Ô¼Ü¹¹µÄÉè¼ÆÓÈÆäÖØÒª£¬ÒòΪºóÆÚ¿ÉÄÜËæÊ±»á¼Ó¸ö¹¦ÄÜ»òÕßÈ¥µôijЩ¹¦ÄÜ¡£ ËùÒÔÌØµØÑ°ÇóÈçºÎÉè¼ÆC/SµÄ¼Ü¹¹Ê¹³ÌÐò¸ü¼ÓÃæÏò¶ÔÏó¸ü¼ÓÒ×ÓÚά ......
´ó¼ÒºÃ£¬ÕâÊÇÒ»¸öÖ÷ÒªÃæÏòc/c++/mfcµÄȺ£¬×î½ü½øÐÐÁËÒ»´Î´óÇåÀí£¬»¶Ó¸÷λ¸ßÊÖ¼ÓÈ룬ºÃѧ°®ÎʵÄÐÂÊÖ£¬Ò²¿ÉÒÔÉêÇëµÄ£¬ÉêÇë¸ñʽ Ö°Òµ£¨c/c++/mfc ÈÎѡһ»òÕ߶ࣩ ¹¤×÷ÄêÏÞ£¨Ñ§ÉúÖ±½Óд´ó¼¸£©¾ÍÐÐÁË£¬ÈëȺµÄÒªÇó¾ÍÊÇÒª» ......
´ó¼ÒºÃ£º ÎÒÏëʵÏÖ¼ì²âµ½²åÈëSD¿¨ºó×Ô¶¯½«SD¿¨¸ñʽ»¯µÄ¹¦ÄÜ£¬²»ÖªC/C++ÖÐÓÐûÓиñʽ»¯UÅ̵ĺ¯Êý£¿ ÁíÍ⣬ÎÒ²»ÏëʹÓÃSHFormatDrive£¬ÒòΪÕâ¸öº¯Êý»áµ¯³öÊÇ·ñÒª¸ñʽ»¯µÄÌáʾ¿ò£¬ÎÒÐèÒªµÄÊÇϵͳ×Ô¶¯¸ñʽ»¯£¬¶ø²Ù×÷Õß² ......