字符串携带 "
cs
// "{"RpcId":-34,"Id":8}"
var obj = JsonHelper.FromJson("""{"RpcId":-34,"Id":8}""");
var obj1 = JsonHelper.FromJson(@"{""RpcId"":-34,""Id"":8}", typeof(C2M_Recharge));
参考
Raw string literals - """ - C# | Microsoft Learn
C# 处理字符串中带有 / 和 "" 的情况_c# 中string字段中含有"-CSDN博客