using System; namespace Tests { class Strings { static void FormatString(String outString, String format, params Object[] args) { outString.AppendF(format, params args); } [Test] public static void TestBasics() { var str0 = scope $@"AB\C"; Test.Assert(str0 == "AB\\C"); var str1 = scope @$"\A{100+200}B{100+200:X}"; Test.Assert(str1 == "\\A300B12C"); var str2 = scope String(); FormatString(str2, $"\a{200+300}B{200+300:X}"); Test.Assert(str2 == "\a500B1F4"); } } }