Libconfig 修改配置文件里的某个节点

THCommandStatus = ( 
  {
    Status = "1";
    index = 5;
  }, 
  {
    Status = "2";
    index = 8;
  }, 
  {
    Status = "3";
    index = 7;
  }, 
  {
    Status = "4";
    index = 0;
  } );

比如这是配置文件的内容，我要修改Status和index。

代码如下：

	config_t cfg;const char* value = nullptr;const char* cfg_data = nullptr;char					g_AnyProcessPath[256];config_init(&cfg);// Read the file. If there is an error, report it and exit. if (!config_read_file(&cfg, cfg_filename)) {BLOG_DEBUG("can't open cfg file");return -1;}config_setting_t* Platform = config_lookup(&cfg, "THCommandStatus");int Platform_count = Platform ? config_setting_length(Platform) : 0;for (unsigned int i = 0; i < Platform_count; i++) {int TcpPort = 0;std::string StartRequest = "";std::string StopRequest = "";std::string HoldUri = "";config_setting_t* process_item = config_setting_get_elem(Platform, i);config_setting_t* Status_ = config_setting_get_member(process_item, "Status");config_setting_t* index_ = config_setting_get_member(process_item, "index");switch (i){case 0:config_setting_set_string(Status_, "666");config_setting_set_int(index_, i);break;case 1:config_setting_set_string(Status_, "777");config_setting_set_int(index_, i);break;case 2:config_setting_set_string(Status_, "888");config_setting_set_int(index_, i);break;case 3:config_setting_set_string(Status_, "999");config_setting_set_int(index_, i);break;default:break;}}// 写入文件if (!config_write_file(&cfg, cfg_filename)) {BLOG_DEBUG(fmt::format("Error:{}", config_error_text(&cfg)));}config_destroy(&cfg); 

然后修改指定的参数之后，内容如下：

THCommandStatus = ( 
  {
    Status = "666";
    index = 0;
  }, 
  {
    Status = "777";
    index = 1;
  }, 
  {
    Status = "888";
    index = 2;
  }, 
  {
    Status = "999";
    index = 3;
  } );