2. Peel the cucumber and cut it into small pieces.
3. Put the salt into the cucumber and mix well, let it stand for 10 minute, then wash the salt with clear water and drain the water of the cucumber.
4. Put the cucumber in a fresh-keeping box, then add sugar and white vinegar. White vinegar should just drown the cucumber. The amount of sugar can be increased or decreased according to personal taste. Finally, put the mixed cucumber in the refrigerator for about 3 hours.