我试图写一个正确的线性上下文无关文法,其中0和1的数之间的差应该是偶数。例如:
010001 = 4 - 2 = 2 (even)
我有一个。也许能帮上忙!我想把它写在prolog上。我做了另外10项练习,但这对我来说太难了。对怎么做有什么想法吗?
我的代码
s --> [].
s --> [1],a.
s --> [0],b.
a --> [1],s.
a --> [0],c.
b --> [1],c.
b --> [0],s.
c --> [].
c --> [1],b.
c --> [0],a.
这在很多情况下都是可行的,
我见过这个。How to prevent numbers being changed to exponential form in Python matplotlib figure 然而,我有一些自定义的注解要放进去,我只是希望matplotlib不显示1e9标记。下面的示例代码 import matplotlib.pyplot as plt
import seaborn as sns
sns.set() # not necessary, but just to reproduce the photo below
f, a = plt.subplots() # I use the oo
我有一个列表(StoreList)。我需要清点所有商店里所有可用的苹果。不知道该怎么做。
Class myObject
Public What As String
Public Available As Boolean
End Class
Public Sub Test()
Dim ItemList As New List(Of myObject)
ItemList.Add(New myObject With {.What = "Apple", .Available = True})
ItemList.Add(New myObject