c# - C# 将具有多种类型字符的字符串编码为 HTML

Answer 1

You are looking following code:

public string HTMLEncodeSpecialChars(string text)
{
  System.Text.StringBuilder sb = new System.Text.StringBuilder();
  foreach (char c in text){
    if(c>127) // chars not in ASCII
      sb.Append(String.Format("&#{0};",(int)c));
    else
      sb.Append(c);
  }
  return sb.ToString();
}

Answer 2

If your input is in UTF, could you not just parse the text with a loop that does (pseudocode)

foreach char in string
    if char code greater than 126
        print "&#" + charcode + ";"
    else if char is &
        print "&"
    else 
        print char

refinements possible...

It would be better to use the entity strings, IMO as they are clearer to human reader and less likely to be misinterpreted by computer. However, the above should work...