例如D:\temp\下有一个theQuery.st模板，内容如下

SELECT $column; separator=","$ FROM $table$;

-----------------C#代码如下--------------------------------------

StringTemplateGroup group = new StringTemplateGroup("myGroup", "C:/temp");
StringTemplate query = group.GetInstanceOf("theQuery");
query.SetAttribute("column", "name");
query.SetAttribute("column", "email");
query.SetAttribute("table", "User");

-----------------结果如下--------------------------------------

SELECT name,email FROM User;