设计一个可进行复数运算的演示程序。要求实现下列六种基本运算:1)由输入的实部和虚部生成一个复数；2)两个复数求和；3)两个复数求差；4)两个复数求积，5)从已知复数中分离出实部；6)从已知复数中分离出虚部。运算结果以相应的复数或实数的表示形式显示。

-Can be complex to design a computing demo program. Requirements to achieve the following six basic operations: 1) by the input of real and imaginary parts generate a plural　2) Summation of two plural　3) for the two plural poor　4) the two quadrature plural, 5) from to know the plural to isolate the real part　6) from the known plural isolated and imaginary parts. Computing results to the corresponding real number or plural form of that.