Shoe and method for determining flatness of ground

A shoe comprising:

• a shoe body including a sole;
• a power supply unit disposed in said shoe body and configured to provide electric power;
• a sensing unit electrically connected to said power supply unit for receiving the electric power therefrom, said sensing unit being disposed in said sole of said shoe body and configured to continuously measure a distance to a ground;
• and
• a control unit electrically connected to said power supply unit for receiving the electric power therefrom, said control unit being configured to communicate with said sensing unit, to calculate a statistical value of a plurality of measured distances that are measured by said sensing unit within a predetermined period, to obtain a comparison result by comparing the statistical value with a predetermined standard, and to determine that the ground is uneven in response to determining that the comparison result is greater than a predetermined value.