[英]2d arrays and how to populate them with one dimensional arrays
這是我的代碼:
def SetUpScores():
scoreBoard= []
names = ["George", "Paul", "John", "Ringo", "Bryan"]
userScores = [17, 19, 23, 25, 35]
for i in range(0,5):
scoreBoard.append([])
for j in range(0,2):
scoreBoard[i].append(names[i])
scoreBoard[i][1]= userScores[i]
我基本上是在嘗試創建一個包含名稱和userScore的二維數組,我對此進行了很多查找,到目前為止,我一直在使列表分配索引的錯誤超出范圍,或者無法調用“列表”。
如果我從代碼中刪除最后一行,即:
def SetUpScores():
scoreBoard= []
names = ["George", "Paul", "John", "Ringo", "Bryan"]
userScores = [17, 19, 23, 25, 35]
for i in range(0,5):
scoreBoard.append([])
for j in range(0,2):
scoreBoard[i].append(names[i])
我懂了
[['George','George'],['Paul','Paul'],['John','John'],['Ringo','Ringo'],['Bryan','Bryan'] ]而沒有任何錯誤(這只是為了測試是否制作了數組)。
我想做些類似的事情:
[['George',17],['Paul',19],['John',23],['Ringo',25],['Bryan',35]]
任何幫助,將不勝感激,謝謝!
使用scoreBoard[i].append(names[i])
,您可以添加單個元素,而不是列表。 因此,下一行scoreBoard[i][1]= userScores[i]
會導致錯誤,因為它引用了names[i]
的第二個元素,它只是一個字符串。
做您想做的最緊湊的方法是
for name, score in zip(names, userScores):
scoreBoard.append([name, score])
names = ["George", "Paul", "John", "Ringo", "Bryan"]
userScores = [17, 19, 23, 25, 35]
L3 =[]
for i in range(0, len(L1)):
L3.append([L1[i], L2[i]])
print(L3)
Output:
[[17, 'George'], [19, 'Paul'], [23, 'John'], [25, 'Ringo'], [35, 'Bryan']]
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