编写程序，对一个整数数组使用某种排序方法(自选)进行降序排列，输出排序前后的数组内容 设计一个复数类，包含必要的属性、构造方法和成员方法，在程序中调用这些方法并输出运算结果。-The preparation of procedures, an array of integers using a sort method (optional) in descending order, the output sorted array of pre-and post content　design of a complex type that contains the necessary properties, construction methods, and members of the methods, procedures call these methods and Output Operational Results.