本文实例讲述了C语言读写配置文件的方法。分享给大家供大家参考。具体如下：
CException.h如下：
?| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 |
/************************************************************************/
/* make0000@msn.com */
/************************************************************************/
/************************************************************************/
#include "stdio.h"
#include "conio.h"
#include "signal.h"
#include "setjmp.h"
#include "assert.h"
#ifdef __cplusplus
#include "iostream"
#include "exception"
extern "C"{
#define dllexport __declspec(dllexport)
jmp_buf Jmp_Buf;
int E;
#define Exception 0x00000
#define e Exception
#define try if(!(E=setjmp(Jmp_Buf)))
#define last_error() E
#define catch(val) else
#define throw(val) longjmp(Jmp_Buf,val)
#define check(expersion) assert(expersion)
#define GetError() errno
dllexport void sig_usr(int);
dllexport char* getTime();
}
#else
#define dllexport __declspec(dllexport)
jmp_buf Jmp_Buf;
int E;
#define Exception 0x00000
#define e Exception
#define try if(!(E=setjmp(Jmp_Buf)))
#define last_error() E
#define catch(val) else
#define throw(val) longjmp(Jmp_Buf,val)
#define check(expersion) assert(expersion)
#define GetError() errno
dllexport void sig_usr(int);
dllexport char* getTime();
#endif
|
File.h如下：
?| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#define SIZE 128
#include "CException.h"
#define export __declspec(dllexport)
//读取配置文件.
int read_file(char* filename,char* key,char* value);
//写配置文件.
int write_file(char* filename,char* key,char* value);
//释放文件.
int release();
//写入节.
int write_section(char* filename,char* section);
int read_section(char* filename);
int getAuthor(char* value);
void getVersion(char* value);
|
File.c如下：
?| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 |
#include "File.h"
#include <string.h>
int read_file(char* filename,char* key,char* value)
{
int flag=0;
char buffer[SIZE];
FILE *file=fopen(filename,"r");
try
{
if(file==NULL)
{
flag=1;
throw(flag);
}
else
{
while(fgets(buffer,SIZE,file)!=NULL)
{
int i=0,j=0,len=strlen(key);
while(buffer[i]!='\0')
{
if(buffer[i]=='$'&&buffer[i+len+1]=='=')
{
j=i+len+2;
while(buffer[j]!='\0'&&buffer[j]!=';')
{
int h=0;
if(buffer[i+1]==key[i])
{
//printf("%c",buffer[j]);
value[j-i-len-2]=buffer[j];
}
j++;
}
break;
}
else if(buffer[i]=='/'&&buffer[i+1]=='/'||buffer[i]==';')
{
break;
//comment
}
i++;
}
}
}
}
catch(Exception)
{
flag=2;
fclose(file);
printf("can't open file %s",filename);
exit(1);
}
fflush(file);
fclose(file);
return flag;
}
int write_file(char* filename,char* key,char* value)
{
int flag=0;
FILE* file;
file=fopen(filename,"a");
try
{
if(file==NULL)
{
flag=1;
throw(flag);
}
fprintf(file,"$%s=%s\n",key,value);
}
catch(Exception)
{
printf("Can't write file %s",filename);
exit(1);
}
fflush(file);
fclose(file);
return flag;
}
int write_section(char* filename,char* section)
{
int flag=0;
FILE* file=NULL;
try
{
file=fopen(filename,"a");
if(file!=NULL)
{
fprintf(file,"[%s]\n",section);
}
else
{
int flag=1;
throw(flag);
}
}
catch(Exception)
{
printf("can't open file %s",filename);
exit(0);
}
fflush(file);
fclose(file);
return flag;
}
int release()
{
int flag=1;
return flag;
}
int read_section(char* filename)
{
return 0;
}
int getAuthor(char* value)
{
char author[128]="武汉软件工程职业学院计算机应用系";
int i=0;
for(i=0;i<strlen(author);i++)
{
value[i]=author[i];
}
return 0;
}
void getVersion(char* value)
{
char version[128]="2009//05//01";
int i=0;
for(i=0;i<strlen(version);i++)
{
value[i]=version[i];
}
}
/**************************************************************************
void main()
{
char* str=NULL;
char author[120];
char buffer[128];
char buffer1[128];
char buffer2[128];
read_file("F:\\exercise\\C++!C\\sys.ini","password",buffer);
read_file("F:\\exercise\\C++!C\\sys.ini","username",buffer1);
read_file("F:\\exercise\\C++!C\\sys.ini","driver",buffer2);
printf("password=%s\n",buffer);
printf("\n");
printf("username=%s\n",buffer1);
printf("\n");
printf("driver=%s\n",buffer2);
getAuthor(author);
printf("\n");
printf("author=%s",author);
release();
}
|
希望本文所述对大家的C语言程序设计有所帮助。
如果您对该产品感兴趣，请填写办理（客服微信：xiaoxiongyidong）
发表评论
◎欢迎参与讨论，请在这里发表您的看法、交流您的观点。