猜数 Python 2.7

Question

I am having trouble with this program. It is suposed to generate a random whole number between 1 and 1000 but it will generate something like 627.68969869867986985747640967487598563876586805465097080967576587609787587658976098

 from random import *
 def main():

    numGuess = input ("guess your number")
    ranNum = randint(8, 100000)
    while ranNum <> numGuess:
        print numGuess
        numGuess = input ("guess your number")
        print numGuess
        ranNum = randint(0,1000)
        if numGuess > ranNum :
            print("ugg, your number is too big")
        else:
            print("whoops, your number is too small")
        if numGuess == ranNum :
            print("YAHOO, YOU GOT IT RIGHT!!!!!!!!")
   main()

could someone tell me why this is not working (it was ran in a python 2.7 editor) also, The first time you enter your number it does not tell you if you should guess higher or lower.

Answer 1

A few things. You generally shouldn't use * in your Python imports ( from module import * ). If you're only using one function from the module, it is much safer and your code will be more easily understood if you use from random import randint .

You are reassigning your ranNum after the first guess. Your first guess could change to a correct answer once ranNum has been reassigned to a new value.

Also, your description says you are looking to generate a random number between 1 and 1000, but your first assignment of ranNum is ranNum == randint(8, 10000) and that will generate a random int between 8 and 10000.

My suggestion is to remove the name assignments that are outside of the loop and change your while condition to while True: then in your if numGuess == ranNum: logic, add a break statement to break the loop inside main().

As for your question, I don't believe you're getting a long result such as the one you provided by using randint(). Is there a part of your code you have left out?

Answer 2

A few things are either redundant or done wrong, the following is a modification of your solution with a few changes:

from random import *
def main():

    numGuess = -1
    ranNum = randint(1, 1000)
    while ranNum <> numGuess:        
        numGuess = input ("guess your number")
        print numGuess        
        if numGuess > ranNum :
            print("ugg, your number is too big")
        elif numGuess < ranNum:
            print("whoops, your number is too small")
        else:
            print("YAHOO, YOU GOT IT RIGHT!!!!!!!!")
main()

• you ask for the user's input twice in the beginning because of the redundant call before the while loop
• The call to ranNum = randint(8, 100000) - not needed
• You want to do ranNum = randint(0,1000) only once, before you start looping
• The if/else/if mechanism - can be improved (see above)

Answer 3

Try this one, just corrected in your code..

from random import *
def main():

    numGuess = 1
    ranNum = 10
    while ranNum <> numGuess:
        ranNum = randint(1,1000)
        numGuess = input ("guess your number")
        #print ranNum, "random"
        if numGuess > ranNum :
            print("ugg, your number is too big")
        elif numGuess < ranNum:
            print("whoops, your number is too small")
        else:
            print("YAHOO, YOU GOT IT RIGHT!!!!!!!!")
main()