编写一个函数模板，它返回两个值中的最小者，但同时要确保这个函数模板能正确处理字符串。并编写主函数，实现两个字符串中最小者的输出。

适合初学者对c++函数模板的入门-Write a function template, which returns the minimum of the two values, but at the same time to ensure that the function template to correctly handle the string. And write the main function, to achieve the minimum output of the two strings. For beginners the right c++ function template entry