Find what character appears next to a specified other in python-CodePudding

I’m coding in python. Is there a way to find what appears next to a specified other character. My string is A4B6C1D7. Using the code: if “A” in string:I would like to know if there is a way to then find out what appears next to it, so ideally: yes it appears in string and the number next to it is 4. It will always be a number next to the letter before another letter if this helps? Thanks!

CodePudding user response：

You can use .find() method of string to find where in the string the character lies. You can then pull the next character by adding one to that:

myString = 'A4B6C1D7'
print(myString[myString.find('A') 1])

>>>'4'

CodePudding user response：

Assuming there are no multiple instances of "A" for example:

def get_value(char, full):
    if char in full:
        index = full.index(char)
        if index   1 <= len(full) - 1:
            return full[index 1]

print(get_value("A", "A4B6C1D7"))
# 4

CodePudding user response：

Something like this i think:

myString = 'A4B6C1D7'
if 'A' in myString:
    ind = myString.index('A')
    nextLet = myString[ind 1:ind 2]
    print(nextLet)