使用Matches或Regex而不是Split可以轻松完成此操作：

string input = "{name}{name@gmail.com}";
var regex = new Regex("{(.*?)}");
var matches = regex.Matches(input);
foreach (Match match in matches) //you can loop through your matches like this
{
  var valueWithoutBrackets = match.Groups[1].Value; // name, name@gmail.com
  var valueWithBrackets = match.Value; // {name}, {name@gmail.com}
}

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使用regex是必须的吗？在这个特殊的例子中，我会写：

s.Split(new char[] { '{', '}' }, StringSplitOptions.RemoveEmptyEntries)

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给你

string s = "{name}{name@gmail.com}";
s = s.Substring(1, s.Length - 2);// remove first and last characters
string pattern = "}{";// split pattern "}{"
string[] result = Regex.Split(s, pattern);

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或者是

string s = "{name}{name@gmail.com}";
s = s.TrimStart('{');
s = s.TrimEnd('}');
string pattern = "}{";
string[] result = Regex.Split(s, pattern);

型

如果你想避免正则表达式，同时也考虑到非格式化文本（不在花括号内的内容），请在'{'上拆分，然后在'}'上拆分每个文本：

string s = "Hi {firstName}, my name is {firstName}, {myLastName}";

IEnumerable<string> tokens = s
    .Split('{')
    .Where(t => t.Contains('}'))
    .Select(t => t.Split('}').First());

// This will yield "firstName", "firstName", "myLastName".

IEnumerable<string> distinctTokens = tokens.Distinct(); // To weed out duplicates.

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