python 多執行緒 Threading

簡單的多執行緒：python 2.7

# -*- coding: utf-8 -*-

import threading
defrun_thread
():while
true:
cmd = input("input you choice: ")
print(cmd)
if cmd == 0:
print("thread exit")
break
else:
print("thread running")
t1 = threading.thread(target=run_thread)
t1.setdaemon(true)
t1.start()
print('join')
t1.join()
print('end')

input you choice: join11

thread running
input you choice: 2
2thread running
input you choice: 0
0thread
exit
endprocess finished with exit code 0

實驗1

將t1.join() 這句注釋掉：

# -*- coding: utf-8 -*-

import threading
defrun_thread
():while
true:
cmd = input("input you choice: ")
print(cmd)
if cmd == 0:
print("thread exit")
break
else:
print("thread running")
t1 = threading.thread(target=run_thread)
t1.setdaemon(true)
t1.start()
print('join')
#t1.join()
print('end')

joininput you choice: 

endprocess finished with
exit code 0

沒有機會輸入資料。

實驗2：

將t1.join() 這句注釋掉：

將t1.setdaemon(true) 這句也注釋掉：

# -*- coding: utf-8 -*-

import threading
defrun_thread
():while
true:
cmd = input("input you choice: ")
print(cmd)
if cmd == 0:
print("thread exit")
break
else:
print("thread running")
t1 = threading.thread(target=run_thread)
#t1.setdaemon(true)
t1.start()
print('join')
#t1.join()

joininput you choice: 

end1
1thread running
input you choice: 2
2thread running
input you choice: 5
5thread running
input you choice: 0
0thread
exit
process finished with exit code 0

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