两组支架之间的替换词 [英] Replace word between two sets of brackets

问题描述

我有一个字符串：

"You have just received {{PowerUpName}} from {{PlayerName}}"

然后我收到一组参数（JSON格式）：

I then receive a set of parameters (in JSON format):

{"PowerUpName":"Super Boost","PlayerName":"John"}

我试图找出如何我替换双括号，即{{PowerUpName}}用参数中的话。我想我需要使用正则表达式，但我不知道的表达应该是什么。我在C＃的方式编码（而不能使用LINQ）。

I'm trying to work out how I replace the words within double brackets i.e. {{PowerUpName}} with a parameter. I guess I need to use regex but I have no idea what the expression should be. I'm coding in C# by the way (and can't use LINQ).

任何帮助将非常感激。

推荐答案

如果您要更换里面的 {{和}} 符号，你不需要LINQ：

If you want to replace any words inside {{ and }} symbols, you do not need LINQ:

// Input string
string str = "You have just received {{PowerUpName}} from {{PlayerName}}";
// Initializing sample dictionary object
var obj = new Dictionary<string,string>();
// Filling it out
obj.Add("PowerUpName", "Super Boost");
obj.Add("PlayerName", "John");
// Replacing the values with those in the dictionary
string output = Regex.Replace(str, "(?<=\\{\\{)(.*?)(?=\\}\\})", match => obj[match.Groups[1].Value]);
// Display result
Console.WriteLine(output);

结果：

Result:

You have just received {{Super Boost}} from {{John}}

请参阅示例程序。

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