After eating this 10 candy, take out 9 candy wrappers for 6 candy wrappers (candy wrappers left 1).

Then change the wrappers of these six candies into four candies.

3 pieces of sugar paper for 2 pieces of candy (sugar paper left ***2)

2 pieces of candy paper+1 piece of candy paper and 2 pieces of candy left (candy paper left 1)

2 pieces of candy paper +2 pieces of sugar left 1 piece of candy paper.

Finally, there are two pieces of candy paper left.

So 1 yuan * * * can eat 10+6+4+2+2 = 26 sweets.