1. A computer keyboard, comprising: an operation unit, a processing unit, and an output unit; wherein the operation unit comprises an editing key, a function key, the editing key is configured to respond to a user input to generate an editing information, the function key is configured to respond to the user input to control the computer keyboard entering an editing mode; and the processing unit is configured to transmit the editing information to an editing software via the output unit, when the computer keyboard is in the editing mode.