输出数字菱形，格式为输入菱形的边长，即可获得由一系列数字所组成的数字菱形-Output digital diamond, diamond format of the input side, you can get a digital diamond composed by a series of numbers

VS2010环境下用c言语根据Diamond-Square算法实现的道路地形函数-VS2010 language based on the C algorithm to achieve the road terrain function Diamond-Square algorithm