程序代写代做代考 Programming Exercise 3-1

Programming Exercise 3-1

Programming Exercise 6-9

def main():

# Declare local variables

total = 0.0

number = 0.0

counter = 0

try:

# Open numbers.txt file for reading

infile = open(‘numbers.txt’, ‘r’)

for line in infile:

counter = counter + 1

number = float(line)

total += number

# Close file

infile.close()

# Calculate average

average = total / counter

# Display the average of the numbers in the file

print (‘Average:’, average)

except IOError:

print(‘An error occurred while trying to read the file.’)

except ValueError:

print(‘Non-numeric data found in the file’)

except:

print(‘An error occurred’)

# Call the main function.

main()