2. The apparatus according to claim 1 , wherein the input action detection circuit comprises: a pressure detection sub-circuit configured to detect a press parameter that is generated by pressing the handwriting input apparatus when the user performs the suspending handwriting input; an action determination sub-circuit connected to the pressure detection sub-circuit and configured to determine the input action of the user as an active motion when the press parameter is greater than or equal to a preset threshold value, and to determine the input action of the user as a shift motion when the press parameter is less than the preset threshold value.
2. The apparatus according to claim 1 , wherein the input action detection circuit comprises: a pressure detection sub-circuit configured to detect a press parameter that is generated by pressing the handwriting input apparatus when the user performs the suspending handwriting input; an action determination sub-circuit connected to the pressure detection sub-circuit and configured to determine the input action of the user as an active motion when the press parameter is greater than or equal to a preset threshold value, and to determine the input action of the user as a shift motion when the press parameter is less than the preset threshold value. 4. The apparatus according to claim 2 , further comprising: a reset circuit connected to the communication circuit and configured to reset the cursor on the display screen of the display device.