Code Example 4-4 def multiply(num1, num2): product = num1 * num2 result = add(product, product) return result def add(x, y): z = x + y return z def main(): num1 = 4 num2 = 3 answer = multiply(num1, num2) print("The answer is", answer) main() B. Refer to Code Example 4-4: What values are in x and y after the code runs? a. 4, 3 c. 12, 12 b. 5, 6 d. 24, 24 C. Refer to Code Example 4-4: What is the value of result? a. 48 c. 96 b. 24 d. 12 D. When writing data into a file: file1 = open (“writehere.txt” , ”w”) , if writehere.txt does not exist: a. the program crashes a. A new file named writehere.txt is created b. an exception is thrown but the program doesn’t crash b. A new file names writehere.txt is created with default data.
PYTHON
QUESTION 2 MULTIPLE CHOICE
A. Refer to Code Example 4-1: What is the scope of the variable named s ?
|
a. |
global |
|
b. |
local |
|
c. |
global in main() but local in get_username() |
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d. |
local in main() but global in get_username() |
Code Example 4-4
def multiply(num1, num2):
product = num1 * num2
result = add(product, product)
return result
def add(x, y):
z = x + y
return z
def main():
num1 = 4
num2 = 3
answer = multiply(num1, num2)
print("The answer is", answer)
main()
B. Refer to Code Example 4-4: What values are in x and y after the code runs?
|
a. |
4, 3 |
c. |
12, 12 |
|
b. |
5, 6 |
d. |
24, 24 |
C. Refer to Code Example 4-4: What is the value of result?
|
a. |
48 |
c. |
96 |
|
b. |
24 |
d. |
12 |
D. When writing data into a file: file1 = open (“writehere.txt” , ”w”) , if writehere.txt does not exist:
|
a. |
the |
a. |
A new file named writehere.txt is created |
|
b. |
an exception is thrown but the program doesn’t crash |
b. |
A new file names writehere.txt is created with default data. |
Code Example 5-4
with open("members.txt") as file:
members = file.readlines();
print(members[0], end="")
print(members[1])
E. Refer to Code Example 5-4 , it shows:
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a. |
How to read a list into file |
c. |
How to read the first and second chars into a file |
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b. |
How to read file into a list |
d. |
How to read a file into a list with \n |
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