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#include<stdio.h>
#include<stdlib.h>
#define MAX 41
static int i=0;
int main(void)
{
FILE *fp;
char words[MAX];
if((fp=fopen("words","a+"))==NULL)
{
fprintf(stdout,"Can't open \" word\" file\n");
exit(1);
}
puts("Enter words to add to the file,press the enter.");
puts("Key at the begining of a line to terminate.");
while(gets(words)!=NULL&&words[0]!='\0')
{
fprintf(fp,"%s",words);
i++;
}
rewind(fp);
while(fscanf(fp,"%s",words)==1)
{
puts(words);
}
if(fclose(fp)!=0)
{
fprintf(stderr,"Error closing file.\n");
}
return 0;
}

#include<stdio.h>
#include<stdlib.h>
#define MAX 2000
int main(void)
{
FILE *fp;
char words[MAX];
int wordct=0;
if((fp=fopen("words","a+"))==NULL)
{
fprintf(stderr,"Can't open \" word\" file\n");
exit(1);
}
rewind(fp);
while (fgets(words, MAX - 1, fp) != NULL)
wordct++;
rewind(fp);
puts("Enter words to add to the file,press the enter.");
puts("Key at the begining of a line to terminate.");
while(gets(words)!=NULL&&words[0]!='\0')
{
fprintf(fp,"%d:%s",++wordct,words);
}
puts("File contents:");
rewind(fp);
while(fgets(words,MAX-1,fp)!=NULL)
{
fputs(words,stdout);
}
if(fclose(fp)!=0)
{
fprintf(stderr,"Error closing file.\n");
}
return 0;
}
/*ÎļþÃûÓÉÓû§ÊäÈ룬½¨Á¢Ò»¸öÑ­»·£¬ÈÃÓû§ÊäÈëÎļþλÖã¬
Ôò´òӡλÖõ½ÏÂÒ»¸ö»»ÐзûÖ®¼äµÄ×Ö·û£¬µ±ÊäÈë·ÇÊý×Ö×Ö·ûʱÍ˳ö*/
#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>
#define MAX 41
int main(void)
{
FILE *fp;
char ch;
char file[MAX];
long address;
puts("ÇëÊäÈëÎļþÃû");
gets(file);
if((fp=fopen(file,"rb"))==NULL)
{
fprintf(stderr,"Can't open the %s\n",file);
exit(1);
}


printf("ÇëÊäÈëÒ»¸öÎļþλÖÃ\n");
while(1)
{
scanf("%ld",&address);
if(isdigit(address))
{
break;
}
fseek(fp,address,SEEK_SET);

while((ch=getc(fp))!='\n' && (ch=getc(fp)


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//±³°üÎÊÌâ
#include "stdio.h"
#define MAX 10
void main()
{
 int w[MAX]={0,10,130,15,60,25};      //´æ·ÅÖÊÁ¿
 int v[MAX]={0,30,5,10,20,25};   //´æ·Å¼ÛÖµ
 flo ......

¡¾Á´½Ó¡¿C/C++ Online Reference


C/C++ Reference 
http://www.cppreference.com/ 
C++ Library Reference 
http://www.cplusplus.com/ref/ 
Standard C++ Library Class Reference at Rogue Wave 
http://www.roguewave.com/support/docs/hppdocs/stdref/ 
Dink ......

C' Fragment

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#include<stdio.h>
#include<malloc.h>
#define LEN sizeof(struct link)
struct link
{
char ch;
struct link *next;
}*string;
char a ......

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C/C++
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//////////////////////////////////////////////////////////////////////////
C
Í·Îļþ
(C89,C95)
(C++98,C++03Ò²°üº¬)
include <assert.h>¡¡¡¡¡¡¡¡//Õï¶Ï¿â
include <ctype.h>¡¡¡¡¡¡¡¡ //×Ö·û´¦Àíº¯Êý¿â
include <errno.h>¡¡¡¡¡¡¡¡ //´íÎó¶¨Òå
include <float.h& ......

extern "C"(zz)


 ´ÓÄ³Î»ÍøÓѵIJ©¿Í¿´µ½¹ØÓÚextern "C"Ó÷¨µÄÎÄÕ£¬½²µÃ·Ç³£Í¸³¹£¬ÓÚÊǾÍÕª³­ÁËÎÒ֮ǰ²»ÉõÁ˽âµÄ²¿·Ö×ö¸öbackup¡£
Ò»¡¢´ÓCÓëC++±àÒëÁ¬½Ó·½Ê½ÉîÈëÀí½âextern "C"
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