Foreach 循环迭代错误

Question

所以我需要运行一个循环/循环来替换实体列表中存在的某些单词，这些单词出现在 allSentencesList 中的句子中，然后将带有替换单词的新句子添加到处理的句子列表中。但是该操作无法按我的意愿进行。知道错误可能是什么吗？

• testBox 是 UI 中的列表框
• button1 是 UI 中唯一可用的按钮

代码：

private void button1_Click(object sender, EventArgs e)
        {

            List<string> allSentencesList = new List<string>(new String[] 
            {"Cat jumped over the Wall", "Car was parked", "Car crashed" , 
                "Cat walked on the wall"});

            List<string> processedSentencesList = new List<string>();


            List<string> entityList = new List<string>(new string[] 
            { "Cat", "Car", "Wall" });


            foreach (string sentence in allSentencesList)
            {
                foreach (string entity in entityList) 
                {
                    string processedString = sentence.Replace(entity, 
                        (entity + "/" + "TYPE")); 
                    processedSentencesList.Add(processedString); 
                }
            }


            foreach (string sen in processedSentencesList)
            {
                testBox.Items.Add(sen);
                Console.WriteLine(sen);
            }
        }

这就是我要展示的内容

Cat/TYPE jumped over the Wall/TYPE
Car/TYPE was parked
Car/TYPE crashed
Cat/TYPE walked on the wall/TYPE

这是显示的内容

Cat/TYPE jumped over the Wall
Cat jumped over the Wall
Cat jumped over the Wall/TYPE
Car was parked
Car/TYPE was parked
Car was parked
Car crashed
Car/TYPE crashed
Car crashed
Cat/TYPE walked on the Wall
Cat walked on the Wall
Cat walked on the Wall

Answer 1

看起来您在内部 foreach 循环中多次添加到“已处理”列表中。

当您完成所有要在字符串中执行的替换时，您希望添加到进程列表一次。让您的代码尽可能接近原始代码，试试这个：

foreach (string sentence in allSentencesList)
{
    string processedString = sentence;

    foreach (string entity in entityList) 
        processedString = processedString.Replace(entity, (entity + "/" + "TYPE"));

    processedSentencesList.Add(processedString); 
}