Bài test Python cơ bản

Quiz
•
Computers
•
University
•
Hard
Quan Nguyen Manh
Used 8+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đối với một list my_list, làm thế nào để lấy phần tử cuối cùng của list đó?
my_list[-1]
my_list.last()
my_list.last
my_list[end]
Answer explanation
To get the last element of a list, use my_list[-1]. This index accesses the last element in the list.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đâu là cách tạo một dictionary rỗng trong Python?
()
{}
[]
{''}
Answer explanation
An empty dictionary in Python can be created using the curly braces {}. This is the correct choice as it creates an empty dictionary, not a tuple, list, or a dictionary with an empty string as a key.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đâu là kết quả của biểu thức 3 * 3 ** 3
18
81
27
9
Biểu thức không hợp lệ!
Answer explanation
The expression 3 * 3 ** 3 evaluates to 27, which is the correct answer choice.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong Python, ta dùng gì để kiểm tra xem một key có tồn tại trong dictionary hay không?
has_key()
check_key()
in
exist_key()
Answer explanation
In Python, we use the 'in' keyword to check if a key exists in a dictionary. It is the correct choice because it allows us to easily determine the presence of a key in a dictionary.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong Python, method nào để chuyển đổi một chuỗi thành chữ in hoa?
upper()
uppercase()
to_upper()
capitalize()
Answer explanation
The correct method in Python to convert a string to uppercase is 'upper()'. This method returns a new string with all characters converted to uppercase.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong Python, method nào để xóa phần tử cuối cùng của một list?
pop()
remove()
delete()
del
Answer explanation
The correct method to remove the last element of a list in Python is pop(). It removes and returns the last element of the list.
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Trong Python, (những) câu lệnh nào sau đây sẽ không gây ra lỗi cú pháp?
a = {1; 2; 3}
a = [1, 2, 3; 4, 5, 6]
a = (1, 2, 3; 4, 5, 6)
a = {1: 'one', 2: 'two', 3: 'three'}
a = (1, 2, 3,)
Answer explanation
The correct choices are a = {1; 2; 3}, a = {1: 'one', 2: 'two', 3: 'three'}, and a = (1, 2, 3,). These choices do not cause syntax errors. The other choices contain syntax errors.
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