括号内的循环是什么

Question

my_list = [1,2,3,4,5,6,7,8,9,10]
gen_comp = (item for item in my_list if item > 3)
for item in gen_comp:
print(item)

Answer 1

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# create a list with 10 elements
my_list = [1,2,3,4,5,6,7,8,9,10]
# generate a list based on my_list and add only items if the value is over 3
# this is also known as tuple comprehension 
# that one creates a tuple containing every item in my_list that have a value greater then 3. 
gen_comp = (item for item in my_list if item > 3)
# print the new generated list gen_comp
for item in gen_comp:
print(item)

输出：

4
5
6
7
8
9
10