I'm having some while Loop issues. My goal is to make it so the while loop end if the user enters a negative value 3 times. The issue is when I get to the third message it doesn't end with the "milesLoop" like it should (I tried using one loop but I want to test using multiple loops) This may be an easy issue to fix but I'm stuck.
This is the python code:
__author__ = 'MichaelCorbett'
import sys
print('Michael Corbett converter ')
print('\n')
milesLoop = 1
fhietLoop = 1
gallonLoop = 1
poundsLoop = 1
inchesLoop = 1
while milesLoop == 1:
miles = float(input('What\'s up Will, how many miles do you wish to convert to Kilometers? '))
if miles < 0:
print('This converter does not accept negeative values. Try again!')
miles = float(input('What\'s up Will, how many miles do you wish to convert to Kilometers? '))
if miles < 0:
print('This converter does not accept negeative values. Try again')
miles = float(input('What\'s up Will, how many miles do you wish to convert to Kilometers? '))
if miles < 0:
print('This converter does not accept negeative values. Program is Terminated')
milesLoop = 2
while fhietLoop == 1:
Fheit = float(input('What temperature is it outside in Fahrenheit? '))
if Fheit < 0 and Fheit > 1000:
print('This converter does not accept negeative values.')
Fheit = float(input('What temperature is it outside in Fahrenheit? '))
if Fheit < 0 and Fheit > 1000:
print('This converter does not accept negeative values.')
Fheit = float(input('What temperature is it outside in Fahrenheit? '))
if Fheit < 0 and Fheit > 1000:
print('This converter does not accept negeative values. Program is Terminated')
fhietLoop = 2
while gallonLoop == 1:
gallon = float(input('How many gallons are you trying to convert? '))
if gallon < 0:
print('This converter does not accept negeative values.')
gallon = float(input('How many gallons are you trying to convert? '))
if gallon < 0:
print('This converter does not accept negeative values.')
gallon = float(input('How many gallons are you trying to convert? '))
if gallon < 0:
print('This converter does not accept negeative values. Program Terminated')
gallonLoop = 2
while poundsLoop == 1:
pounds = float(input('How many pounds would you like to convert? '))
if pounds < 0:
print('This converter does not accept negeative values.')
pounds = float(input('How many pounds would you like to convert? '))
if pounds < 0:
print('This converter does not accept negeative values.')
pounds = float(input('How many pounds would you like to convert? '))
if pounds < 0:
print('This converter does not accept negeative values. Program Terminated')
poundsLoop = 2
while inchesLoop == 1:
inches = float(input('How many inches would you like to convert? '))
if inches < 0:
print('This converter does not accept negeative values.')
inches = float(input('How many inches would you like to convert? '))
if inches < 0:
print('This converter does not accept negeative values.')
inches = float(input('How many inches would you like to convert? '))
if inches < 0:
print('This converter does not accept negeative values. Program Terminated')
inchesLoop = 2
# Calculations
kilometers = miles * 1.6
celsius = int((Fheit - 32) * 5/9)
liters = gallon * 3.9
kilograms = pounds * .45
centimeters = inches * 2.54
# Output
print('\n')
print(miles, ' miles is ', kilometers, ' Kilometers')
print('Its is ', celsius, 'Celsius outside.')
print(gallon, ' gallons is ', liters, ' liters')
print(pounds, ' pounds is ', kilograms, ' kilograms')
print(inches, ' inches is ', centimeters, ' centimeters')
答案 0 :(得分：3)
def get_float(prompt):
while True:
try:
return float(input(prompt))
except:
print "Thats not a number!"
def get_positive_number(prompt,tries=3):
for i in range(tries):
result = get_float(prompt)
if result >= 0: return result
print "Sorry Negative not allowed %d/%d"%(i,tries)
while True:
result = get_positive_number("How Many Gallons?")
if result is None:
print "OK DONE"
break
print "Convert %0.2f Gallons"%(result)
答案 1 :(得分：-2)
__author__ = 'MichaelCorbett'
import sys
def myLoop(question, tries = 0):
while True:
if tries == 3:
sys.exit()
user_in = float(input(question))
if user_in < 0:
print('This converter does not accept negeative values. Try again!')
tries += 1
else:
return user_in
print('Michael Corbett converter\n')
miles = myLoop('What\'s up Will, how many miles do you wish to convert to Kilometers?')
Fheit = myLoop('What temperature is it outside in Fahrenheit?')
gallon = myLoop('How many gallons are you trying to convert?')
pounds = myLoop('How many pounds would you like to convert?')
inches = myLoop('How many inches would you like to convert?')
# Calculations
kilometers = miles * 1.6
celsius = int((Fheit - 32) * 5/9)
liters = gallon * 3.9
kilograms = pounds * .45
centimeters = inches * 2.54
print('\n{0} miles is {1} Kilometers'.format(miles, kilometers))
print('Its is {0} Celsius outside.'.format(celsius))
print('{0} gallons is {1} liters'.format(gallon, liters))
print('{0} pounds is {1} kilograms'.format(pounds, kilograms))
print('{0} inches is {1} centimeters'.format(inches, centimeters))