Abstract: A bandwidth resource switching method and apparatus are provided. When a network device sends bandwidth resource indication information to a terminal by using downlink control information, the network device may impose some constraints on uplink transmission mode-related configuration information or SRS-related configuration information on an indicated bandwidth resource, and other indication information carried in the downlink control information, so that no ambiguity occurs when the terminal parses the bandwidth resource indication information. Alternatively, when a side of a terminal receives bandwidth resource indication information sent by a network device by using downlink control information, the terminal parses, in an unambiguous interpretation manner, configuration information on a bandwidth resource indicated by the bandwidth resource indication information in the downlink control information.

Abstract: A program manages various different parts of editable content, including one or more objects. Various different actions can be performed on an object to edit or change the object in some manner. A program presenting the editable content maintains one or more object action records, each object action record being a record of actions performed on a particular object of the editable content. A program can also maintain a document action record that includes indications of actions performed on parts of the editable content that are not objects having an associated object action record, as well as optionally actions performed on the objects having an associated object action record. In response to a user request to undo an action on a particular object, the actions in the object action list associated with the particular object are undone without undoing any intervening actions performed on other parts of the editable content.

Abstract: A program manages various different parts of editable content, including one or more objects. Various different actions can be performed on an object to edit or change the object in some manner. A program presenting the editable content maintains one or more object action records, each object action record being a record of actions performed on a particular object of the editable content. A program can also maintain a document action record that includes indications of actions performed on parts of the editable content that are not objects having an associated object action record, as well as optionally actions performed on the objects having an associated object action record. In response to a user request to undo an action on a particular object, the actions in the object action list associated with the particular object are undone without undoing any intervening actions performed on other parts of the editable content.