Answer:
The function in Python is as follows:
def search_file(filename,mystring):
my_dict = {}
count = 0
file = open(filename)
lines = file.readlines()
for line in lines:
count+=1
if mystring.lower() in line.lower():
my_dict[count] = line.rstrip('\n')
return my_dict
Explanation:
This defines the function
def search_file(filename,mystring):
This initializes an empty dictionary
my_dict = {}
This initializes the number of lines to 0
count = 0
This opens the file
file = open(filename)
This reads the lines of the file
lines = file.readlines()
This iterates through the lines
for line in lines:
This increments the number line
count+=1
This checks if the string exists in the line
if mystring.lower() in line.lower():
If yes, the line number and the string are added to the dictionary
my_dict[count] = line.rstrip('\n')
This returns the dictionary
return my_dict
Answer:An operating system, or "OS," is software that communicates with the hardware and allows other programs to run. It is comprised of system software, or the fundamental files your computer needs to boot up and function.
Explanation:
Answer:
c) It creates a better-structured document
Explanation:
The layout of a web page is better controlled. Style (CSS) kept separate from structure (HTML), means smaller file size. Reduced file size means reduced bandwidth, which means faster loading time.
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