Python - Convert Underscore to Fullstop

Question

Convert String '321_1' to '321.1' .

I would like to create a method to convert the underscore to full stop. i used split but it cant work .. Anyone can help me? or must i use while loop

Convert underscore to fullstop

def Convert_toFullStop(text):

    x1 = ""
    words = text.split()
    if words in ("_"):
        words = "."
    print words

Answer 1

使用replace（）函数？

newtext = text.replace('_','.')

Answer 2

I would do

def Convert_toFullStop(text):
    return text.replace('_', '.')

and leave the print to the caller.

Answer 3

The best is to use replace() method as it's suggested in the answers above.

But if you really want to use split() :

words = text.split("_")
print ".".join(words)

By default split() method splits by space character.