求教大神，电脑上运行没问题，ipad上出错

补上原图

#多进程
#与多线程相比，多进程就是import multiprocessing 然后替换相应的方法multiprocessing.Process()
from time import ctime,sleep
import multiprocessing
def talk(content,loop):
for i in range(loop):
print("Start talk %s %s" %(content,ctime()))
sleep(3)
def write(content,loop):
for i in range(loop):
print("Start write %s %s" %(content,ctime()))
sleep(5)
process=[]
p1=multiprocessing.Process(target=talk,args=('Speek:Hello,51zxw',2))
process.append(p1)
p2=multiprocessing.Process(target=write,args=('Write:Life is short you need Python!',2))
process.append(p2)
if __name__=="__main__":
for p in process:
p.start()
for p in process:
p.join() #join() 线程守护
print("All Process end %r" %ctime())
#相关延申
#·进程间通信IPC(Interprocess communication)
#·线程锁，进程锁
#·生命周期
#·进程调度