使用工作示例的字符串插值:

var title = "Title between quotes";
var string1 = $@"<div>""{title}""</div>";  // Note the order of the $@
Console.WriteLine (string1);

输出

<div>"Title between quotes"</div>

如果你想在HTML中添加双引号

echo "<p>Congratulations, &#8220;" . $variable . "&#8221;!</p>";

输出

Congratulations, "Mr John"!

你可以使用$。

插入字符串: 用于构造字符串。插值字符串看起来像包含插值表达式的模板字符串。插值后的字符串返回一个字符串，该字符串将其包含的插值表达式替换为它们的字符串表示形式。该特性在c# 6及更高版本中可用。

string commentor = $"<span class=\"fa fa-plus\" aria-hidden=\"true\"> {variable}</span>";

在c# 11.0预览版中，你可以使用原始字符串字面值。

Raw string literals are a new format for string literals. Raw string literals can contain arbitrary text, including whitespace, new lines, embedded quotes, and other special characters without requiring escape sequences. A raw string literal starts with at least three double-quote (""") characters. It ends with the same number of double-quote characters. Typically, a raw string literal uses three double quotes on a single line to start the string, and three double quotes on a separate line to end the string.

string str = """
    "How to add double quotes"
    """;

另注:

    string path = @"H:\\MOVIES\\Battel SHIP\\done-battleship-cd1.avi";
    string hh = string.Format("\"{0}\"", path);
    Process.Start(@"C:\Program Files (x86)\VideoLAN\VLC\vlc.exe ", hh + " ,--play");

hh的实际值，正如传递的那样，将是"H:\MOVIES\ batttel SHIP\done-battleship-cd1.avi"。

当需要双双字面值时，使用:@"H:\MOVIES\ batttel SHIP\done-battleship-cd1.avi";

而不是:@"H:\ moviesbatttel SHIP\done-battleship-cd1.avi";

因为第一个字面值是路径名，第二个字面值是双引号。

<i class=\"fa fa-check-circle\"></i>"与Eval()数据绑定的三元运算符一起使用:

Text = '<%# Eval("bqtStatus").ToString()=="Verified" ? 
       Convert.ToString("<i class=\"fa fa-check-circle\"></i>") : 
       Convert.ToString("<i class=\"fa fa-info-circle\"></i>"