设计一个按先来先服务，算法时间片轮转法，优先数调度算法实现处理器调度的程序。

以下是一个简单的处理器调度程序的实现，包括先来先服务算法、时间片轮转算法和优先数调度算法。

# 先来先服务算法
def FCFS(processes):
    time = 0
    for p in processes:
        # 等待时间 = 当前时间 - 到达时间
        p["wait_time"] = time - p["arrival_time"] 
        # 完成时间 = 当前时间 + 执行时间
        time += p["burst_time"]
        p["completion_time"] = time
        # 周转时间 = 完成时间 - 到达时间
        p["turnaround_time"] = p["completion_time"] - p["arrival_time"]
        # 平均周转时间 = 所有进程的周转时间之和 / 进程数
        avg_turnaround_time = sum(p["turnaround_time"] for p in processes) / len(processes)
        # 平均等待时间 = 所有进程的等待时间之和 / 进程数
        avg_wait_time = sum(p["wait_time"] for p in processes) / len(processes)

    return avg_turnaround_time, avg_wait_time


# 时间片轮转算法
def RR(processes, quantum):
    time = 0
    queue = []
    for p in processes:
        queue.append(p)

    while queue:
        p = queue.pop(0)
        # 如果进程未执行完，需要将其重新添加到队列中
        if p["burst_time"] > quantum:
            time += quantum
            p["burst_time"] -= quantum
            queue.append(p)
        # 如果进程执行完了，计算各种时间并将其从队列中移除
        else:
            time += p["burst_time"]
            p["completion_time"] = time
            p["turnaround_time"] = p["completion_time"] - p["arrival_time"]
            p["wait_time"] = p["turnaround_time"] - p["burst_time"]
            avg_turnaround_time = sum(p["turnaround_time"] for p in processes) / len(processes)
            avg_wait_time = sum(p["wait_time"] for p in processes) / len(processes)
            
    return avg_turnaround_time, avg_wait_time


# 优先数调度算法
def priority_scheduling(processes):
    time = 0
    queue = []
    for p in processes:
        queue.append(p)
    # 按照进程的优先级排序
    queue.sort(key=lambda x: x["priority"], reverse=True)

    while queue:
        p = queue.pop(0)
        time += p["burst_time"]
        p["completion_time"] = time
        p["turnaround_time"] = p["completion_time"] - p["arrival_time"]
        p["wait_time"] = p["turnaround_time"] - p["burst_time"]
        avg_turnaround_time = sum(p["turnaround_time"] for p in processes) / len(processes)
        avg_wait_time = sum(p["wait_time"] for p in processes) / len(processes)

    return avg_turnaround_time, avg_wait_time

以上代码仅供参考，实际应用中需要根据具体需求进行修改和完善。