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配置文件的格式如下：
[组名]#注释Key = value#注释Key = value#注释Key = value#注释Key = value#注释Key = value#注释Key = value
glib中的Key-value file parser 可以读写配置文件，下面具体介绍以下怎么使用：
加载配置文件：
static GKeyFile*configure_open_file (const gchar *filename){ GError *err = NULL; GKeyFile *keyfile; keyfile = g_key_file_new (); g_key_file_set_list_separator (keyfile, ','); if (!g_key_file_load_from_file (keyfile, filename, G_KEY_FILE_NONE, &err)){ g_error_free (err); g_key_file_free (keyfile); return NULL; } return keyfile;} 该函数用来加载配置文件并返回GKeyFile指针，如果出错则返回NULL。
函数：
gboolean g_key_file_load_from_file (GKeyFile *key_file,
const gchar *file,
GKeyFileFlags flags,
GError **error);
参数 GKeyFileFlags falgs:
|
| No flags, default behaviour |
| | Use this flag if you plan to write the (possibly modified) contents of the key file back to a file; otherwise all comments will be lost when the key file is written back. |
| | Use this flag if you plan to write the (possibly modified) contents of the key file back to a file; otherwise only the translations for the current language will be written back. |
从配置文件中读取整数：
static gintconfigure_read_int (GKeyFile *keyfile, gchar *sec, gchar *key, gint default_val){ GError *err = NULL; int val = g_key_file_get_integer (keyfile, sec, key, &err); if (err){ error (err->message); g_error_free (err); return default_val; } return val;}
从配置文件中读取字符串：
static voidconfigure_read_string (GKeyFile *keyfile, GString *ret, gchar *sec, gchar *key, gchar *default_val){ GError *err = NULL; gchar* val = g_key_file_get_string (keyfile, sec, key, &err); if (err){ g_string_assign (ret, default_val); g_error_free (err); return; } g_string_assign (ret, val); g_free (val);} 读取的字符串放在了ret中， 同时上面两个函数都提供可默认值的功能，即读取失败时设置默认值。
#includevoid main (){ GKeyFile *keyfile = oj_configure_open_file ("test.conf"); GString *test = g_string_new (""); oj_configure_read_string (keyfile, conf->oj_host_name, "TEST", "test1", "test1"); gint int_test = oj_configure_read_int (keyfile, "TEST", "test_int", 0); g_string_free (test, TRUE); g_key_file_free (keyfile);}
编译命令：
gcc -o test test `pkg-config --cflags --libs glib-2.0`
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