Question

我想知道我的Process是否已停止使用启动此Process的函数

from multiprocessing import Process

def parent_function():
    i = 0
    while True:
        #some code processing
        if i == 0: #start this process only first time
           temp = Process(target=process_function)
           temp.start()

def process_function():
    While True:
        #some code waiting or processing

如果process_function() parent_function发生了某些异常，我的parent_function()就不知道。如何从process_function()再次重新启动该流程功能，并继续检查Sub aa() Set Excel1 = ThisWorkbook.Sheets("Sheet1") Set Excel2 = ThisWorkbook.Sheets("Sheet2") Dim Excel1LR: Excel1LR = Excel1.Range("A1").CurrentRegion.Rows.Count Dim Excel2LR: Excel2LR = Excel2.Range("A1").CurrentRegion.Rows.Count For i = 2 To Excel1LR Dim Value1: Value1 = Excel1.Range("A" & i).Value For j = 2 To Excel2LR Dim Value2: Value2 = Excel2.Range("A" & j).Value If Value1 = Value2 Then Dim Value3: Value3 = Excel2.Range("B" & j).Value If Value3 = 1 Then Excel1.Range("B" & i).Value = "topper" ElseIf Value3 >= 2 And Value3 <= 4 Then Excel1.Range("B" & i).Value = "average" Else Excel1.Range("B" & i).Value = "weak" End If Else End If Next Next msgbox "done" End Sub是否正在运行。

Answer 1

您可以使用is_alive()方法检查子进程是否已终止。它会返回True或False。在parent_function()：

中可能会出现类似情况

if not temp.is_alive():
    # restart the process

从Python中的父函数启动流程

1 个答案: