LINQ排序数组

学习了下C#的排序，Array.Sort需要使用IComparer接口的比较函数。性能高，但是有时候需要写法简单不需要效率时，可以用LINQ：

// To order a sequence by the values of the elements themselves,

// specify the identity function (x => x)

v.OrderBy(x => x).ToArray().Show("ovi", "\r\nSorted by integer value");

// Use a function F(x) to convert the number argument x to a string based on its spelling

v.OrderBy(x => F(x)).ToArray().Show("ovci", "\r\nCase insensitive 

    ordering of number's spelling");