从 Python 中的二维数组打印时如何排列列?

How to line up columns when printing from 2d array in Python?

我想以表格格式显示一个简单的二维数组,标题位于顶部,以便值在标题下排列。有没有办法做到这一点?我看过 pprint 并使用 numpy 进行打印,但无法使其正常工作。这是我目前拥有的:

myArray = [['Student Name','Marks','Level'],['Johnny',68,4],['Jennifer',59,3],['William',34,2]]

for row in myArray:
    print(" ")
    for each in row:
        print(each,end = ' ')

有什么建议吗?

您只需要根据最长元素的长度对齐即可:

myArray = [['Student Name','Marks','Level'],['Johnny',68,4],['Jennifer',59,3],['William',34,2]]
mx = len(max((sub[0] for sub in myArray),key=len))

for row in myArray:
    print(" ".join(["{:<{mx}}".format(ele,mx=mx) for ele in row]))

输出:

Student Name Marks        Level       
Johnny       68           4           
Jennifer     59           3           
William      34           2 

要在最大长度计算中包含 int 值:

mx = max((len(str(ele)) for sub in myArray for ele in sub))
for row in myArray:
    print(" ".join(["{:<{mx}}".format(ele,mx=mx) for ele in row]))

输出:

Student Name Marks        Level       
Johnny       68           4           
Jennifer     59           3           
William      34           2