错误是：无法将序列乘以'float'类型的非整数

Question

i have to make a command line game that takes in monster1 and 2's Affinity|HP|AD and battles them while including the Affinity advantages, for example

If monster1's affinity is Earth and monster2's affinity is Fire than * monster1's AD by 20% per hit and lower monster2's AD by 20% per hit

def getmonsterData():

    global Affinity1
    global Affinity2
    global HP1
    global HP2
    global AD1
    global AD2
    monster1 =  raw_input("Enter the Monster 1's Affinity|HP|AD> ")
    x = monster1.index('|')
    y = monster1.index('|',x+1)
    Affinity1 = monster1[:x]
    HP1 = monster1[x+1:y]
    AD1 = monster1[y+1:]
    printNow(Affinity1+"|"+HP1+"|"+AD1)

    monster2 =  raw_input("Enter the Monster 2's Affinity|HP|AD> ")
    x = monster2.index('|')
    y = monster2.index('|',x+1)
    Affinity2 = monster2[:x]
    HP2 = monster2[x+1:y]
    AD2 = monster2[y+1:]
    printNow(Affinity2+"|"+HP2+"|"+AD2)
    battleNow();


def battleNow():

    global Affinity1
    global Affinity2
    global HP1
    global HP2
    global AD1
    global AD2
    if (Affinity1 == Affinity2):
       printNow("There are no affinity advantages in this battle")
    if (Affinity1 == ("Earth") and Affinity2 == ("Fire")):
       AD1 = (AD1*.20)+AD1  #THIS IS SUPPOSED TO RETURN AD1(MONSTER 1'S AD) TO THE INCREASED 20%
       printNow("Monster 1 has an affinity advantage over Monster 2")
       return
       printNow(AD1)

However, once i do this i get this annoying error

======= Loading Progam =======
Enter the Monster 1's Affinity|HP|AD> Earth|55|1
Earth|55|1
Enter the Monster 2's Affinity|HP|AD> Fire|52|1
Fire|52|1
The error was:can't multiply sequence by non-int of type 'float'
Inappropriate argument type.

not sure where to go from this.. i've looked all over and no real solid answers that didnt have to do with multiplying a list. help :D

EDIITTTTTT: after changing my HP1/2 and AD1/2 to int(), i get no error but only recieve the output of

======= Loading Progam =======
Enter the Monster 1's Affinity|HP|AD> Earth|22|1
Enter the Monster 2's Affinity|HP|AD> Fire|25|1
Monster 1 has an affinity advantage over Monster 2
>>> 

i don't get that last printNow(). i wanted to print the AD1 to see if the 20% increase was added to AD1 properly.

return
printNow(AD1)

Answer 1

You are getting this error because all your HP s and AD s are strings, not ints. When you multiply a string by an int, you get multiple copies of that string:

>>> "abc" * 3
abcabcabc

Since you can't logically multiply a string by 0.2, you get the error. To fix it, just use the built-in int() function like so:

HP1 = int(monster1[x+1:y])

As a side note, I'd like to introduce you to the str.split() function. Instead of calculating string indexes and trying to parse your input that way, simply do

Affinity1, HP1, AD1 = monster1.split("|")

and you're all set. Just call int() on the variables that require it before using them in any calculations.

Answer 2

Your problem is that you're trying to multiply a string by a float (AD1 * .20).

If you fire up the python interpreter, and do the following:

>>> ad = "10"
>>> print ad *.5 + ad

You'll get

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't multiply sequence by non-int of type 'float'

You want to convert AD1 to a float:

print float(ad) *.5 + float(ad)

Couple of other thoughts:

• Don't use globals.
• Use classes to store instance-specific data.
• Semicolons at the ends of lines are not necessary.
• Indent 4 spaces, as has been suggested

I played with your code a bit and came up with the following:

class Monster():
    """Define monster characteristics
    """
    def __init__(self):
        pass

    def getMonsterData(self):
        monster =  raw_input("Enter the Monster's Affinity|HP|AD> ")
        self.loadMonsterData(monster)

    def loadMonsterData(self, monsterData):
        self.affinity, self.hp, self.ad = monsterData.split('|') # not safe
        print("{}|{}|{}".format(self.affinity, self.hp, self.ad))

def battleNow(monster1, monster2):
    """Make 2 monsters fight it out
    """
    if (monster1.affinity == monster2.affinity):
        printNow("There are no affinity advantages in this battle")
    if (monster1.affinity == "Earth" and monster2.affinity == "Fire"):
        ad = float(monster1.ad)
        monster1.ad = ad * .2 + ad #THIS IS SUPPOSED TO RETURN AD1(MONSTER 1'S AD) TO THE INCREASED 20%
        print("Monster 1 has an affinity advantage ({}) over Monster 2 ({})".format(monster1.ad, monster2.ad))
        return
    print(monster1.ad)

if __name__ == '__main__':
    monsters = []
    monsters.append(Monster())
    monsters.append(Monster())
    monsters[0].loadMonsterData("Earth|100|10")
    monsters[1].loadMonsterData("Fire|50|5")

    battleNow(monsters[0], monsters[1])