如何在字符串和特定索引中转换特定字符

Question

例如，我有“ alba iuliara”字符串，我想做的是用“ a”转换所有“ a”，但不是第一个和最后一个“ a”。结果必须是“ alba iuliara”，

任何想法如何使用诸如时期，如果和等等的陈述。

Answer 1

如果您使用替换方法，这很容易。

代码，如果您不考虑第一个和最后一个字符

your_string = "alba iuliara"
your_string = f"{your_string[0]}{your_string[1:-1].replace('a','A')}{your_string[-1]}"
print(your_string)

Answer 2

        your_string = "Namaskara"
        rep_char='a'
        occ1=your_string.find(rep_char)   #Searches for first occurence of replacing character
        occn=your_string.rfind(rep_char) #Searches for last occurence of replacing character
    
    #from startig poition of string to your first occurence of character  and last occurence of character to end of the string nothing will be replaced. for remaining string character will be replaced with uppercase
        your_string = f"{your_string[0:occ1+1]}{your_string[occ1+1:occn].replace(rep_char,rep_char.upper())}{your_string[occn:]}"
    
        print(your_string)

output: NamAskAra

我已经使用了@Jock逻辑，但已修改以使其通用。