C++实现的复数类，包含了复数的加、减、乘法运算，和3*3的复数矩阵乘法,C++ Realized plural category, the plural includes the addition, subtraction, multiplication, and 3* 3 complex matrix multiplication

设计一个复数类，能够完成复数之间的基本运算，重写方法toString()，使其能输出此复数（形式为： 实部 + 虚部i）。 要求设计的复数类必须有三个构造函数，分别为无参数、1个参数和2个参数的构造函数，完成的基本运算包括两个复数的加、减、乘、除法和变换了共轭复数。 -The design of a complex type, able to complete the basic operations between plural, rewrite the method toString

复数的四则运算.包括加，减，乘，除，求模运算。希望这个代码对大家有所帮助。-About Complex Arithmetic Summary (add sub mul div mod and so on) is very simply but very practiclarly. I hope this can help every friend