When I wrote this program, I have been learning Python for nearly one hundred hours, I saw someone on CSDN asking for help using Python how to write a program to sell drinks automatically, I thought, try to write a practical vending program. Of course, just to realize the basic functions, welcome to expert guidance, novice learning reference.
Running environment: Python 2.7
# encoding=UTF-8
loop=True
money=0
while loop:
x = raw_input('Hint: Please put in gold coins, and press "q" to end the coin toss.')
if x=='q':
if money==0:
print 'Error: you have not put in a bill, please put in at least one bill before shopping for products'
else:
print ''Hint: You have ended the coin toss and will enter the purchase goods operation interface''
loop = False
else:
try:
x = int(x)
money+=x
print 'Hint: You're coin tossing this time',x,'RMB, your total coins.',money,'Yuan Renminbi'
except Exception,e:
print 'Error: your gold coins are not recognized by the system, please re-coin, thank you!'
GoodList = {
'Coca-Cola':2.5,
'Fruit Orange':3,
'Milk tea':1.5,
'Gadobao':4
}
i=0
print 'Please select a commodity:'
for x in GoodList:
i+=1
print 'Number',i,'Trade name',x,'Price',GoodList[x]
print
fanwei = range(len(GoodList))
loop = True
while loop:
o = raw_input('Hint: Please enter the item number you want to buy and press "q" to end the purchase')
if o=='q':
loop = False
else:
try:
o = int(o)
if o>=1 and o<=len(GoodList):
i=0
for x in GoodList:
i+=1
if i==o:
if money>=GoodList[x]:
money -= GoodList[x]
print 'Hint: The item you purchased is:',x,', Price:',GoodList[x],', you also have remaining: ',money,'Yuan Renminbi'
if money==0:
loop = False
else:
print 'Error: your balance',money,'There are not enough dollars left to buy this item',x,'[',GoodList[x],'Meta]'
else:
print 'Error: The item number you have entered does not exist, please re-enter it'
except Exception,e:
print 'Error: please enter the correct product number, thank you for your cooperation!'
if money>0:
print 'Hint: the system will be looking for you,',money,'Yuan RMB, welcome to the next visit'
else:
print 'Hint: Your balance has been used up, welcome to the next visit'