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±ê×¼C¿ØÖÆÌ¨ÊäÈëÊä³öÁ÷º¯ÊýÍ·Îļþ<cstdio>-----<stdio.h>
using ::size_t; using ::fpos_t; using ::FILE;
using ::clearerr; using ::fclose; using ::feof;
using ::ferror; using ::fflush; using ::fgetc;
using ::fgetpos; using ::fgets; using ::fopen;
using ::fprintf; using ::fputc; using ::fputs;
using ::fread; using ::freopen; using ::fscanf;
using ::fseek; using ::fsetpos; using ::ftell;
using ::fwrite; using ::getc; using ::getchar;
using ::gets; using ::perror;
using ::putc; using ::putchar;
using ::printf; using ::puts; using ::remove;
using ::rename; using ::rewind; using ::scanf;
using ::setbuf; using ::setvbuf; using ::sprintf;
using ::sscanf; using ::tmpfile; using ::tmpnam;
using ::ungetc; using ::vfprintf; using ::vprintf;
using ::vsprintf;
wsprintf() //winuser.h,include in windows.h
size_tÒ»°ãÓÃÀ´±íʾһÖÖ¼ÆÊý£¬±ÈÈçÓжàÉÙ¶«Î÷±»¿½±´µÈ£¬sizeof²Ù×÷·ûµÄ½á¹ûÀàÐÍÊÇsize_t£¬ËüÔÚÍ·ÎļþÖÐtypedefΪ unsigned intÀàÐÍ£¬¼´typedef unsigned int size_t £¬¸ÃÀàÐͱ£Ö¤ÄÜÈÝÄÉʵÏÖËù½¨Á¢µÄ×î´ó¶ÔÏóµÄ×Ö½Ú´óС¡£strncat£¬strncmp£¬strncpyµÈ¶¼Óõ½ÁËËü¡£
size_t ÊÇΪÁË·½±ãϵͳ֮¼äµÄÒÆÖ²¶ø¶¨ÒåµÄ£¬ÔÚ32λϵͳÉÏ ¶¨ÒåΪunsigned int£¬ÔÚ64λϵͳÉÏ ¶¨ÒåΪunsigned long¡£
±ê×¼¿âº¯ÊýÍ·Îļþ<cstdlib>-----<stdlib


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1.JavaÔÚÐéÄâ»úÉÏÔËÐР
JavaÔ´´úÂë²¢²»ÊDZ»±àÒë³ÉΪÆÕͨµÄ»úÆ÷´úÂë¡£¶øÊDZ»·­Òë³ÉΪÐéÄâ»ú¿ÉÒÔÖ´ÐеĴúÂë¡£Ò»¸öJava½âÊÍÆ÷×îÖÕÖ´ÐÐÕâЩ´úÂë¡£ÕâÆäÖÐûÓÐÁ¬½ÓµÄ¹ý³Ì£»½âÊÍÔÚÐèÒªµÄʱºò¶¯Ì¬µÄ¼ÓÔØÒ»Ð©Àࣻ 
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CÓëC++µÄÇø±ð

1. C++ËäÈ»Ö÷ÒªÊÇÒÔCµÄ»ù´¡·¢Õ¹ÆðÀ´µÄÒ»ÃÅÐÂÓïÑÔ£¬µ«Ëý²»ÊÇCµÄÌæ´úÆ·£¬²»ÊÇCµÄÉý¼¶£¬C++ºÍCÊÇÐֵܹØÏµ¡£Ã»ÓÐË­±ÈË­ÏȽøµÄ˵·¨£¬¸üÖØÒªµÄÒ»µãÊÇCºÍC++¸÷×Եıê׼ίԱ»áÊǶÀÁ¢µÄ£¬×îеÄC++±ê×¼ÊÇC++98£¬×îеÄC±ê×¼ÊÇC99¡£Òò´ËҲûÓÐÏÈѧCÔÙ˵C++µÄ˵·¨£¬Ò²²»ÔÙ£¨×¢ÒâÕâ¸ö"²»ÔÙ"£©ÓÐC++Óï·¨ÊÇCÓï·¨µÄ³¬¼¯µÄ˵·¨¡£
2. C++/CL ......

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//#include "stdafx.h"
/*
ÃèÊö:´¿cÄ£ÄâÀà,´¿c±àдc++Àà,´¿cʵÏÖc++ÀàµÄ¼òµ¥·¶Àý,½á¹¹Ä£ÄâÀà,struct ±àдclass.
c±àдÀàÊÇʵÏÖ´¿c±àдcom×é¼þµÄ»ù´¡¡£
*/
#include <stdio.h>
typedef struct _Vtbl
{
    void (*AddRef)(struct CObject* obj,int);//ËùÓеĺ¯ÊýµÄµÚÒ»¸ö²ÎÊýÀàËÆclassµÄÒþÄäµÄ ......

C Snippet #8(¹æ¶¨Ê±¼äÊäÈ룬·ñÔòĬÈÏÌø×ªµÄʵÏÖ)

http://www.ddj.com/cpp/221600722
Q: HOW DO I... put timers with default actions in my C code?
A: Many times, we need to write programs that will only wait a certain specified amount of time for a user to do something. After that time, we need to assume that the user isn't going to do anything and ......
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