C＃在RichTextBox中按順序查找單詞

Question

我有2個rich text boxes 。 第一個文本框包含輸入，第二個文本框將顯示找到的單詞的輸出

輸入：我的名字是umer，我的父親名字是waqar

輸出：

umer is found
my is found
name is found
is is found
father is found
my is found

輸出不是我想要的。 我想要下面這樣的輸出 ：

my is found
name is found
is is found
umer is found
my is found
father is found
name is found
is is found
waqar is found

我的代碼是：

 private void button1_Click(object sender, EventArgs e)
        {
           if (richTextBox1.Text.Contains("umer"))
            richTextBox2.AppendText("\numer is found");

            if (richTextBox1.Text.Contains("my"))
            richTextBox2.AppendText("\nmy is found");

            if (richTextBox1.Text.Contains("name"))
            richTextBox2.AppendText("\nname is found");

            if (richTextBox1.Text.Contains("is"))
            richTextBox2.AppendText("\nis is found");

            if (richTextBox1.Text.Contains("father"))
                richTextBox2.AppendText("\nfather is found");

            if (richTextBox1.Text.Contains("waqar"))
                richTextBox2.AppendText("\nwaqar is found");
        }

Answer 1

如果在每個單詞后都is found您想要的is found ，則可以將if列表替換為：

var words = richTextBox1.Text.Split(' ');
richTextBox2.Text = String.Join(words, " is found \n");

Answer 2

您可以使用linq獲得獨特的單詞：

 
 
 
 
  
  
  string text = "my name is umer my father name is waqar"; var uniqueWords = text.Split(' ').GroupBy(x => x).Select(x=>x.Key); foreach (var value in uniqueWords) { richTextBox2.AppendText(value +" is found"); }
 
 
  

更新（因為OP要求不是唯一的詞）：

var result= text.Split(' ');

foreach (var value in result)
{
   richTextBox2.AppendText(value +" is found");
}

Answer 3

這是您所需要的：

 string[] words = richTextBox1.Text.Split(' ');       
 foreach (string searchString in words)
 {
      if (richTextBox1.Text.Contains(searchString))
      {
         richTextBox2.AppendText(searchString + " is found.\n");
      }
 }