.NET框架给了我们格式方式：

The .NET Framework gives us the Format method:

string s = string.Format("This {0} very {1}.", "is", "funny");
// s is now: "This is very funny."

我想一个格式化恢复功能，是这样的：

I would like an "Unformat" function, something like:

object[] params = string.Unformat("This {0} very {1}.", "This is very funny.");
// params is now: ["is", "funny"]

我知道类似的东西存在于ANSI-C库（的printf VS的