Hi, I have tried the below function and find that it can remember the previous setting value to 'val'. I think the second parameter has something on this effect, but I don't know the name and function of '=[]' in this application.
Could you explain a little to me?
Thanks,
def eList(val, list0=[]):
list0.append(val)
return list0
list1 = eList(12)
list1 = eList('a')
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