Foreach循環迭代錯誤

Question

因此，我需要運行一個或多個循環來替換出現在allSentencesList中的句子中的EntityList中存在的某些單詞，然后將帶有替換單詞的新句子添加到processedSentencesList中。 但是該操作無法如我所願。 知道錯誤可能是什么嗎？

• testBox是用戶界面中的列表框
• button1是用戶界面中唯一可用的按鈕

碼：

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);
            }
        }

這是我要顯示的

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

這就是顯示的內容

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

看起來您是在內部foreach循環中多次添加到“已處理”列表中。

完成所有要在字符串中進行的替換后，您只需一次將其添加到進程列表中。 使您的代碼盡可能接近原始代碼，請嘗試以下操作：

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

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

    processedSentencesList.Add(processedString); 
}