我尝试创建一个新集合，它找到两个集合之间的共同元素，并用 for 和 if 减去它们而不使用不同的集合方法

Question

I try to make a new set that it find the elements common between the two sets and subtract them with for and if without using different set method

I was going to compare all the elements in my first set and second set by opening two different for loops and using if command, find the common ones and remove them with the remove command, but I am getting the "list index out of range" error

my code is below. I don't know much coding as I am beginner. I wrote this code for practice

my_set = {1,2,3,4,5}
your_set = {4,5,6,7,8,9,10}

my_list = list(my_set)
your_list = list(your_set)

for i in range(len(my_list)):
    for j in range(len(your_list)):
        if (my_list[i] == your_list[j]):
            my_list.remove(my_list[i])

my_set2 = set(my_list)
print(my_set2)

Answer 1

If you want to remove the common items in my_set and your_set from my_set .

my_set = {1, 2, 3, 4, 5}
your_set = {4, 5, 6, 7, 8, 9, 10}

new_set = my_set.difference(your_set.intersection(my_set))
print(new_set)
print(my_set) 

# {1, 2, 3}
# {1, 2, 3, 4, 5}

If you want the difference removed from your_set ,

your_new_set = your_set.difference(your_set.intersection(my_set))

---

You can also do it using if and for as in your original code,

result = []  # Initialize an empty list to store the result

# Iterate through each element in my_set
for i in my_set:
    # Check if the current element is not in your_set
    if i not in your_set:
        # If it is not, append it to the result list
        result.append(i)

# if you want output in set, convert the list back to set
result = set(result)

# Print the final result
print(result)