python编写操作系统实验_计算机操作系统实验

running=[]

ready=[]

block=[]

#用列表存储进程

#菜单函数

def menu():

pass

print('{:*^30}'.format(''))

print('{: ^30}'.format('1.创建进程'))

print('{: ^30}'.format('2.时间片结束'))

print('{: ^30}'.format('3.阻塞进程'))

print('{: ^30}'.format('4.唤醒进程'))

print('{: ^30}'.format('5.结束进程'))

print('{: ^30}'.format('6.退出'))

print('{:*^30}'.format(''))

#创建进程

def creatNewProcess():

temp = input('请输入进程名称:')

if len(running)==0:

running.append(temp)

else:

ready.append(temp)

# print(ready)

#时间片到

def timeOut():

if len(running)!=0:

ready.append(running[0])

del running[0]

running.append(ready[0])

del ready[0]

#阻塞进程

def blockProces():

if len(running)!=0:

block.append(running[0])

del running[0]

if len(ready)!=0:

running.append(ready[0])

del ready[0]

#唤醒进程

def wakeProcess():

if len(block)!=0:

ready.append(block[0])

del block[0]

#结束进程

def endProcess():

if len(running)!=0:

del running[0]

if len(ready)!=0:

running.append(ready[0])

del ready[0]

#显示

def display():

print('running:', end=' ')

for i in range(len(running)):

print(running[i], end=' ')

print()

print('ready:',end=' ')

for i in range(len(ready)):

print(ready[i],end=' ')

print()

print('block:',end=' ')

for i in range(len(block)):

print(block[i],end=' ')

print()

#主函数

if __name__=='__main__':

while 1:

menu()

temp=input('请选择功能:')

if temp=='1':

creatNewProcess()

display()

elif temp=='2':

timeOut()

display()

elif temp=='3':

blockProces()

display()

elif temp=='4':

wakeProcess()

display()

elif temp=='5':

endProcess()

display()

elif temp=='6':

exit()

else:

print('输错了！')

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