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                #### 多個進程修改全局變量 ~~~ #coding=utf-8 import os import time num = 0 # 注意,fork函數,只在Unix/Linux/Mac上運行,windows不可以 pid = os.fork() if pid == 0: num+=1 print('哈哈1---num=%d'%num) else: time.sleep(1) num+=1 print('哈哈2---num=%d'%num) ~~~ 運行結果: ![](https://box.kancloud.cn/351d85c6f53ab1783f14e3963ad56547_808x110.gif) >[warning] 總結: >多個進程中,每個進程所有數據(包括全局變量)都各有一份,互不影響
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