用“和”替换字符串中的最后一个逗号。 （目标C）

I'm looking for a good way in Objective-C to replace the last comma in a string with the word "and". Any suggestions?

我正在寻找Objective-C中的一个好方法，用单词“and”替换字符串中的最后一个逗号。有什么建议么？

"Red, Green, Blue, Yellow"

“红色，绿色，蓝色，黄色”

becomes

变

"Red, Green, Blue and Yellow"

“红色，绿色，蓝色和黄色”

1 个解决方案

#1

NSString *str = @"....";  
NSRange lastComma = [str rangeOfString:@"," options:NSBackwardsSearch];

if(lastComma.location != NSNotFound) {
    str = [str stringByReplacingCharactersInRange:lastComma
                                       withString: @" and"];
}