楼上那个试了下没用,这里给楼主写个满足你要求的。
/*程序写了两个函数,FormatFind用于查找目标文本中是否存在trans=/"。。。。"的格式,返回是否找到这种格式,其中变量PfOffset和PfLength用于记录目标文件中匹配内容的文件偏移量和内容长度。能满足屏蔽换行符等其它任何不合法符合,而且内容必须要有"结束才算合法。
FormatPrint函数用于按60个字为一行输出到另一文本中
主函数由于使用了传递参数,所以要求在dos下按格式调用此程序,假设编译后程序名为a.exe,且同一目录下有目标文本,假设为1.txt,拷贝到2.txt中
格式为:dos命令行中,在a.exe的目录下,输入 a 1.txt 2.txt
*/
#include<stdio.h>
#include<windows.h>
char FormatFind(FILE *fpIn,long *PfOffset,long *PfLength);
void FormatPrint(FILE *fpIn,FILE *fpOut,long PfOffset,long PfLength);
void main(int argc, char *argv[])
{
FILE *fpIn,*fpOut;
long PfOffset = 0,PfLength = 0;
if(argc == 3)//满足main函数输入格式
{
if( (fpIn = fopen(argv[1],"r")) == NULL)//原文件打开成功,即文件存在
{
printf("文件不存在");
exit(0);
}
fpOut = fopen(argv[2],"w");
printf("开始查找...\n");
if( FormatFind(fpIn,&PfOffset,&PfLength) )//查找格式匹配的内容是否存在
{
printf("文本中发现匹配内容,内容长度为%ld字节\n",PfLength);
printf("开始拷贝...\n");
FormatPrint(fpIn,fpOut,PfOffset,PfLength);//将格式匹配内容存盘
printf("拷贝完成,存放在%s文件中\n",argv[2]);
}
else
{
printf("文本中没有匹配内容");
}
fclose(fpIn);
fclose(fpOut);
}
else//不满足main函数输入格式
{
printf("命令错误");
}
}
#define MATCH0WORD 0
#define MATCH1WORD 1
#define MATCH2WORD 2
#define MATCH3WORD 3
#define MATCH4WORD 4
#define MATCH5WORD 5
#define MATCH6WORD 6
#define MATCH7WORD 7
#define MATCHCHECK 99
#define MATCHEND 100
char FormatFind(FILE *fpIn,long *PfOffset,long *PfLength)
{
char ch;
char match = MATCH0WORD;
*PfLength = 0;
while(feof(fpIn) == 0)
{
ch = getc(fpIn);
switch(match)
{//trans=/"
case MATCH0WORD:
if(ch == 't')
match = MATCH1WORD;
break;
case MATCH1WORD:
if(ch == 'r')
match = MATCH2WORD;
else
match = MATCH0WORD;
break;
case MATCH2WORD:
if(ch == 'a')
match = MATCH3WORD;
else
match = MATCH0WORD;
break;
case MATCH3WORD:
if(ch == 'n')
match = MATCH4WORD;
else
match = MATCH0WORD;
break;
case MATCH4WORD:
if(ch == 's')
match = MATCH5WORD;
else
match = MATCH0WORD;
break;
case MATCH5WORD:
if(ch == '=')
match = MATCH6WORD;
else
match = MATCH0WORD;
break;
case MATCH6WORD:
if(ch == '/')
match = MATCH7WORD;
else
match = MATCH0WORD;
break;
case MATCH7WORD:
if(ch == '\"')
match = MATCHCHECK;
else
match = MATCH0WORD;
break;
case MATCHCHECK:
*PfOffset = ftell(fpIn) - 1;
match = MATCHEND;
break;
case MATCHEND:
(*PfLength)++;
if(ch == '\"')
return 1;
}
}
return 0;
}
#define RowNum 60
void FormatPrint(FILE *fpIn,FILE *fpOut,long PfOffset,long PfLength)
{
char ch;
long i = 0;
fseek(fpIn,PfOffset,SEEK_SET);
while(PfLength > 0)
{
ch = getc(fpIn);
putc(ch,fpOut);
i++;
if( (i % RowNum) == 0 )
{
putc('\n',fpOut);
}
PfLength--;
}
}
追问恩!非常不错,可是我的头文件校验失败。我还特定跑去CSDN下载了全部的头文件还是失败!求教你是用哪个C版本,我是tubor C++ 3.0