初级python列表练习题提问

def select_second(L):
    if len(L)>1:
        return L[1]
    return None

print(select_second([1,2]))
print(select_second([1]))

def select_second(L):
    if type(L) is list:
        if len(L)>1:
            return L[1]
    return None

def l(_list):
    try:
        return _list[1]
    except:
        return None