C 读取ini文件的实例详解
发布时间:2020-12-15 03:32:37 所属栏目:C语言 来源:网络整理
导读:C 读取ini文件 前言: 在Windows下可以用GetPrivateProfileString或GetPrivateProfileInt方便读取.ini配置文件内容,但是在Linux平台上就一筹莫展了。为了解决该问题,打算用C来读取.ini,即可不受平台的限制了。 #define CONF_FILE_PATH "Config.ini"#inclu
C 读取ini文件 前言: 在Windows下可以用GetPrivateProfileString或GetPrivateProfileInt方便读取.ini配置文件内容,但是在Linux平台上就一筹莫展了。为了解决该问题,打算用C来读取.ini,即可不受平台的限制了。 #define CONF_FILE_PATH "Config.ini" #include <string.h> #ifdef WIN32 #include <Windows.h> #include <stdio.h> #else #define MAX_PATH 260 #include <unistd.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #endif char g_szConfigPath[MAX_PATH]; //获取当前程序目录 int GetCurrentPath(char buf[],char *pFileName) { #ifdef WIN32 GetModuleFileName(NULL,buf,MAX_PATH); #else char pidfile[64]; int bytes; int fd; sprintf(pidfile,"/proc/%d/cmdline",getpid()); fd = open(pidfile,O_RDONLY,0); bytes = read(fd,256); close(fd); buf[MAX_PATH] = ' '; #endif char * p = &buf[strlen(buf)]; do { *p = ' '; p--; #ifdef WIN32 } while('' != *p ); #else } while('/' != *p ); #endif p++; //配置文件目录 memcpy(p,pFileName,strlen(pFileName)); return 0; } //从INI文件读取字符串类型数据 char *GetIniKeyString(char *title,char *key,char *filename) { FILE *fp; char szLine[1024]; static char tmpstr[1024]; int rtnval; int i = 0; int flag = 0; char *tmp; if((fp = fopen(filename,"r")) == NULL) { printf("have no such file n"); return ""; } while(!feof(fp)) { rtnval = fgetc(fp); if(rtnval == EOF) { break; } else { szLine[i++] = rtnval; } if(rtnval == 'n') { #ifndef WIN32 i--; #endif szLine[--i] = ' '; i = 0; tmp = strchr(szLine,'='); if(( tmp != NULL )&&(flag == 1)) { if(strstr(szLine,key)!=NULL) { //注释行 if ('#' == szLine[0]) { } else if ( '/' == szLine[0] && '/' == szLine[1] ) { } else { //找打key对应变量 strcpy(tmpstr,tmp+1); fclose(fp); return tmpstr; } } } else { strcpy(tmpstr,"["); strcat(tmpstr,title); strcat(tmpstr,"]"); if( strncmp(tmpstr,szLine,strlen(tmpstr)) == 0 ) { //找到title flag = 1; } } } } fclose(fp); return ""; } //从INI文件读取整类型数据 int GetIniKeyInt(char *title,char *filename) { return atoi(GetIniKeyString(title,key,filename)); } int main(int argc,char* argv[]) { char buf[MAX_PATH]; memset(buf,sizeof(buf)); GetCurrentPath(buf,CONF_FILE_PATH); strcpy(g_szConfigPath,buf); int iCatAge; char szCatName[32]; iCatAge = GetIniKeyInt("CAT","age",g_szConfigPath); strcpy(szCatName,GetIniKeyString("CAT","name",g_szConfigPath)); return 0; } #define CONF_FILE_PATH "Config.ini" #include <string.h> #ifdef WIN32 #include <Windows.h> #include <stdio.h> #else #define MAX_PATH 260 #include <unistd.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #endif char g_szConfigPath[MAX_PATH]; //获取当前程序目录 int GetCurrentPath(char buf[],char *pFileName) { #ifdef WIN32 GetModuleFileName(NULL,MAX_PATH); #else char pidfile[64]; int bytes; int fd; sprintf(pidfile,getpid()); fd = open(pidfile,0); bytes = read(fd,256); close(fd); buf[MAX_PATH] = ' '; #endif char * p = &buf[strlen(buf)]; do { *p = ' '; p--; #ifdef WIN32 } while( '' != *p ); #else } while( '/' != *p ); #endif p++; //配置文件目录 memcpy(p,strlen(pFileName)); return 0; } //从INI文件读取字符串类型数据 char *GetIniKeyString(char *title,char *filename) { FILE *fp; char szLine[1024]; static char tmpstr[1024]; int rtnval; int i = 0; int flag = 0; char *tmp; if((fp = fopen(filename,"r")) == NULL) { printf("have no such file n"); return ""; } while(!feof(fp)) { rtnval = fgetc(fp); if(rtnval == EOF) { break; } else { szLine[i++] = rtnval; } if(rtnval == 'n') { #ifndef WIN32 i--; #endif szLine[--i] = ' '; i = 0; tmp = strchr(szLine,'='); if(( tmp != NULL )&&(flag == 1)) { if(strstr(szLine,key)!=NULL) { //注释行 if ('#' == szLine[0]) { } else if ( '/' == szLine[0] && '/' == szLine[1] ) { } else { //找打key对应变量 strcpy(tmpstr,tmp+1); fclose(fp); return tmpstr; } } } else { strcpy(tmpstr,"["); strcat(tmpstr,title); strcat(tmpstr,"]"); if( strncmp(tmpstr,strlen(tmpstr)) == 0 ) { //找到title flag = 1; } } } } fclose(fp); return ""; } //从INI文件读取整类型数据 int GetIniKeyInt(char *title,char *filename) { return atoi(GetIniKeyString(title,filename)); } int main(int argc,char* argv[]) { char buf[MAX_PATH]; memset(buf,sizeof(buf)); GetCurrentPath(buf,CONF_FILE_PATH); strcpy(g_szConfigPath,buf); int iCatAge; char szCatName[32]; iCatAge = GetIniKeyInt("CAT",g_szConfigPath); strcpy(szCatName,g_szConfigPath)); return 0; } 下边是配置文件: [CAT] age=2 name=Tom 如有疑问请留言或者到本站社区交流讨论,感谢阅读,希望能帮助到大家,谢谢大家对本站的支持! (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |