C语言编写的电话计费系统大作业,调用系统时间函数,对电话系统摸拟的很接近,(C language to write telephone billing system operation, call the system time function, the telephone system simulation is very close,)

C语言编写的电话计费系统大作业,调用系统时间函数,对电话系统摸拟的很接近,()

电话计费方法详细说明 Telephone billing method details()