插入關閉「input」HTML元素

Question

我需要在C＃中插入一個不存在於字符串中的關閉「input」元素。

例如：

This is some content <input type="readonly" value="value1"> and 
there is further content. This is some additional <input type="readonly" 
value="value2"> text and then there is further text. 

必須與具有關閉「輸入」元素來替換：

This is some content <input type="readonly" value="value1"></input> and 
there is further content. This is some additional <input type="readonly" 
value="value2"></input> text and then there is further text. 

注意會有開閉「輸入」的元件之間沒有內容，它只要打開「輸入」元素結束，只需要提供一個關閉「輸入」元素。

Answer 1

下面是代碼，我相信有更優雅的方式，但在這裏它是

static void AddClosingTag() 
{ 
    string input = "This is some content <input type='readonly' value='value1'> and there is further content. This is some additional <input type='readonly' value='value2'> text and then there is further text."; 

    int index = 0; 

    while (true) 
    { 
     index = input.IndexOf("<input", index); 
     if (index == -1) 
     { 
      break; 
     } 
     index = input.IndexOf(">", index); 
     input = input.Insert(index + 1, "</input>"); 
    } 

    Console.WriteLine(input); 
}