如何在 Python 中创建压缩 function？

Question

I need to create a function called StringZip that compresses a string by replacing repeated letters with number of repeats. Ex) aaaaabbbbbccccccaaaddddd -> a5b5c6a3d5

I want to change this code into function:

 s = 'aaaaabbbbbccccccaaaddddd'
 result = s[0]  
 count  = 0

 for i in s:
     if i == result[-1]:
         count += 1
     else:
         result += str(count) + i
         count = 1
 result += str(count)

 print(result)

How can I create function using def?

Answer 1

syl! The way that you can create a function with def is like this:

def myFunctionName(myParam, myOtherParam):
   # your function
   return endResult

Or in your case:

# lower_with_under() is the standard for functions in python
def string_zip(inString):
    s = inString
    result = s[0]  
    count  = 0
    for i in s:
        if i == result[-1]:
            count += 1
        else:
            result += str(count) + i
            count = 1
    result += str(count)
    print(result)

And you would call it like:

theResult = myFunctionName(1, 3)

Or in your case:

print(string_zip("aaaaabbbbbccccccaaaddddd"))

I hope this helps!
By the way, next time, can you try searching on Google for what you want before asking it on Stack Overflow? It helps keep it organized. Thanks!