给定两个列表，请将它们合并为一个，并按升序排序。
list1 = [1, 3, 5, 7, 9]
list2 = [2, 4, 6, 8, 10]
# TODO: combine 'list1' and 'list2' into a single list and sort it in ascending order
你可以使用extend()将两个列表合并成一个，然后使用sorted()按升序排序:
```
list1 = [1, 3, 5, 7, 9]
list2 = [2, 4, 6, 8, 10]
merged_list = list1 + list2
sorted_list = sorted(merged_list)
print(sorted_list)
```