c# - C# 中双引号中的 String.Format

Question

有没有人可以帮我解决下一行的 string.Format 问题。在“2056”中，我需要作为 {0} 传递。

string body = @"{""idTimeSerie"":""2056"",""idTso"":-1}";

由于双引号，我无法让它执行。

我试过这种方式，但没有成功。

string body = string.Format
                    (@"{""idTimeSerie"": "" \"{0}\" "",""idTso"":-1}", countryID);

Answer 1

你必须避开花括号

replace { to {{

string body = @"{{""idTimeSerie"":""2056"",""idTso"":-1}}";

编辑:From MSDN - Another way of Escaping

Opening and closing braces are interpreted as starting and ending a format item. Consequently, you must use an escape sequence to display a literal opening brace or closing brace. Specify two opening braces ("{{") in the fixed text to display one opening brace ("{"), or two closing braces ("}}") to display one closing brace ("}"). Braces in a format item are interpreted sequentially in the order they are encountered. Interpreting nested braces is not supported.

int value = 6324;
string output = string.Format("{0}{1:D}{2}", 
                             "{", value, "}");
Console.WriteLine(output);
// The example displays the following output: 
//       {6324}