如何在字符串中的单词a之间交换和重新定殖

Question

一个H.W C＃问题： 我有一个包含4个单词的字符串（例如：string = "Joe walking every day"; 任务是识别第三个单词（任何字符串...），并与第一个单词交换 所以我的输出字符串将是“每天乔走天”

我当时想用于？如果？索引器？一个方向将与完整答案一样好

注释中的代码

int counter = 0;
string lyrics = "Joe walking every day";
Console.WriteLine(lyrics[3]);
for (int i = 0; i < lyrics.Length; i++) {
    if (lyrics[i] ==' ') {
        if (counter==2) {
            //must be the start of 3rd word
            if (counter==3) {
                //must be the end of 3rd word
            }
        }
    }
} //this is as far I reached

Answer 1

您可以尝试：

string lyrics = "Joe walking every day";
String[] words = lyrics.Split(" ");
string firstWord = words[0];
string thirdWord = words[2];
words[0] = thirdWord;
words[2] = firstWord;
string swapped = string.Join(" ",words);
Console.WriteLine(swapped);