def get_path(self):
model, tree_iter = self.selection.get_selected()<EOL>if not tree_iter:<EOL><INDENT>return '<STR_LIT:/>'<EOL><DEDENT>else:<EOL><INDENT>return model[tree_iter][PATH_COL]<EOL><DEDENT>
获取选择的路径, 如果没有选择, 就返回根目录