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/* Note:Your choice is C IDE */
#include "stdio.h"
main(int argc, char *argv[])
{
FILE *fp;
char ch;
int num=0,max;
int line=0;
if((fp=fopen(argv[1],"rt"))==NULL)
{
printf("\nCannot open file strike any key exit!");
getch();
exit(1);
}
while(ch!=EOF)
{
if(wherex()==1) {num++;printf("%d: ",num);}
putchar(ch);
ch=fgetc(fp);
}
max=num;
num=0;
fclose(fp);
while(1)
{
num=0;
fp=fopen(argv[1],"rt");
ch=fgetc(fp);
while(ch!=EOF)
{
if(wherex()==1) {num++;printf("%d: ",num);}
if(num==line+24) break;
putchar(ch);
ch=fgetc(fp);
}
printf("Which line do you want going to?(Most %d)",max);
scanf("%d",&line);
if(line<=0) exit(1);
}
}
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1. CµÄʵÏÖ
//stack.h
#ifndef STACK_H
#define STACK_H
#define STACK_CAPACITY 20//maximum size of stack
typedef int stackEle;
typedef struct
{
stackEle myArray[ STACK_CAPACITY ];
int myTop;
}stack;
//construct(initialize) an empty stack
stack *stack_init(void);
//return 1 if stack is em ......
1. ÓÃÔ¤´¦ÀíÖ¸Áî#define ÉùÃ÷Ò»¸ö³£Êý£¬ÓÃÒÔ±íÃ÷1ÄêÖÐÓжàÉÙÃ루ºöÂÔÈòÄêÎÊÌ⣩
#define SECONDS_PER_YEAR (60 * 60 * 24 * 365)UL
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1). #define Óï·¨µÄ»ù±¾ÖªÊ¶£¨ÀýÈ磺²»ÄÜÒԷֺŽáÊø£¬À¨ºÅµÄʹÓ㬵ȵȣ©
2). ¶®µÃÔ¤´¦ÀíÆ÷½«ÎªÄã¼ÆËã³£Êý±í´ïʽµÄÖµ£¬Òò´Ë£¬Ö±½Óд³öÄãÊÇÈçºÎ¼ÆËãÒ»ÄêÖÐÓж ......
clock()·µ»Øclock_tÀàÐÍ£»
ÔÚtime.hÍ·ÎļþÖУ¬¶¨ÒåÁË typedef long clock_t
clock()ÊÇÓÃÀ´¼ÆËãÁ½¸öʱ¼äµãÖ®¼äµÄʱ¼ä¼ä¸ô¡£ÈçϳÌÐò£º
#include <stdio.h>
int main()
{
int i = 0;
clock_t start_time, end_time;
start_time = clock(); //¿ªÊ¼¼ÆÊ±, start_time = 0
while( ......
exercise2.4
void squeeze(char s[],char t[])
{
int i,j,k;
int lens,lent;
lens=strlen(s);
lent=strlen(t);
for(i=0,k=0;i<lens;i++)
{
for(j=0;j<lent;j++)
if(s[i]==t[j])
break;
if(j==lent)
s[k++]=s[i];
}
s[k]='\0';
}
exercise2.5
int any(char s[],char t[ ......