Software: Python version
Computer: WIN 10
System: 3.2 Free of charge
There are no duplicate values in the 1 and set collections. Set is in the form of {item 1, item2...}. Create a set: s = {1, 2,3} or s= set () or s= set(( 1, 2,3)). Duplicate elements in the set will be automatically filtered out.
2. Add and delete elements set_name.add(item), set_name.remove(item) and set_name.pop ().
3. Use operators to calculate the union, intersection and difference sets of two sets.
4. Use operators to calculate the union, intersection and difference sets of two sets.
5. Calculate the union, intersection and difference of two sets by the method of intersection, union and difference of sets.
Small hibiscus can be pruned at seedling stage, cutting off the growing points at the top of its branches and pruning branches and leaves regularly. Branches tha