code: function initCombine() {
  	file_tree = ['@charset "'+at_charset+'";\r\n/* file tree:'];
  	combined_list = {};
  	tree_deep = 0;
  	contents = [];
  	sass_config = glb_data.sass_config || {}; //不能放在initProject里
  	sass_config.includePaths = [prj_path];
  }
docs: 初始化合并