1. Use a hair dryer to blow for a while. After heating, the glue will melt and can be peeled off more easily. If there are still some traces that cannot be removed, you can apply it with wind oil essence, which will remove it relatively cleanly.

2. Use a paper towel dipped in some alcohol to wipe it, and then rub it a few times and it will be clean.

3. Use acetone, the same method as above. The dosage is small and thorough. The best thing is that it can remove these residual gums quickly and easily, much better than alcohol.

4. Use nail polish remover. The usage is the same as alcohol acetone. The effect is also very good. There is no requirement for the quality of nail polish remover, good or average will do, as long as it can remove nail polish, anything will be fine.

5. Use hand cream. First tear off the printing on the surface, then squeeze some hand cream on it, rub it slowly with your thumbs, and rub it for a while to remove all the remaining glue. Just a little slower. Hand cream is a greasy substance and its properties are incompatible with glue. This feature is used to remove glue.

6. Use banana water. It is an industrial agent used to remove paint and is easily available. The method is the same as alcohol acetone.

7. It is difficult to remove the adhesive film that has been used for a long time. You can first use a hair dryer to soften and remove the adhesive film, and then use rosin water to wash away the remaining adhesive on the glass.