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| Section | Objectives |
|---|---|
| Functions and Modularity | - Function definition and scope - Modules and imports |
| Debugging and Testing Basics | - Basic testing concepts - Error identification and correction |
| Data Structures | - Basic data manipulation - Lists, tuples, dictionaries |
| Control Flow | - Conditional statements (if / elif / else) - Loops (for, while) |
| Python Programming Fundamentals | - Operators and expressions - Variables and data types - Syntax and basic structure |
| Introduction to Object-Oriented Programming | - Classes and objects - Basic OOP concepts |
| File Handling and Exceptions | - Exception handling (try/except) - Reading and writing files |
>> Foundations-of-Programming-Python考題資訊 <<
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問題 #18
What does the string method ' ' .join() return when applied to the list [ ' Hello ' , ' World ' ]?
答案：B
解題說明：
The string method join() combines the strings in an iterable using the string before .join() as the separator.
In this question, the separator is an empty string:
' ' .join([ ' Hello ' , ' World ' ])
Because the separator is empty, Python joins ' Hello ' and ' World ' directly together with no space or comma between them.
Result:
' HelloWorld '
The official Python documentation defines str.join() as returning a string made by joining the strings in the given iterable.
Therefore, the correct answer is B. ' HelloWorld ' .
問題 #19
Write a complete function word_count(text) that counts and returns the number of words in the given text.
Words are separated by spaces.
For example, word_count( " Hello world Python " ) should return 3.
def word_count(text):
# TODO: Count and return the number of words in text
pass
答案：
解題說明：
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one string parameter named text.
Step 2: Since words are separated by spaces, use the .split() method to split the string into a list of words.
Step 3: Use len() to count how many items are in the list.
Step 4: Return that count.
Correct code:
def word_count(text):
return len(text.split())
Example:
print(word_count( " Hello world Python " ))
Output:
3
問題 #20
Which data type does the expression 5 > 3 evaluate to in Python?
答案：B
解題說明：
In Python, comparison expressions such as 5 > 3 evaluate to aBooleanvalue.
The expression:
5 > 3
checks whether 5 is greater than 3. Since this statement is true, Python returns:
True
True and False are Boolean values in Python.
Therefore, the correct answer isC. Boolean.
問題 #21
Which components are required in every Python for loop?
答案：B
解題說明：
A Python for loop is used to iterate over an iterable object, such as a list, tuple, string, dictionary, set, or range() object.
A basic for loop needs:
A loop variable
An iterable object
An indented code block
Example:
for number in range(3):
print(number)
In this example:
number is the loop variable.
range(3) is the iterable.
print(number) is the indented code block that runs during each loop iteration.
According to the official Python documentation, the for statement is a construct that works with iterable objects.
Therefore, the correct answer is A. A variable, an iterable, and an indented code block.
問題 #22
Write a complete function reverse_string(text) that takes a string and returns it reversed.
For example, reverse_string( " hello " ) should return " olleh " .
def reverse_string(text):
# TODO: Return the reversed string
pass
答案：
解題說明：
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one string parameter named text.
Step 2: Python slicing can be used to reverse a string.
Step 3: The slice [::-1] means start at the end of the string and move backward by one character at a time.
Step 4: Return text[::-1].
Correct code:
def reverse_string(text):
return text[::-1]
Example:
print(reverse_string( " hello " ))
Output:
olleh
問題 #23
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