Python "\n"标记额外行

Question

我正在尝试在命令行中构建一个简单的板。

问题:当我使用“\n”结束当前行时，它会添加一个额外的空行。我该如何解决？

代码:

def drawBoard():
    board = [ [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,3,2,1,0,0],
              [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,0,0,0,0,0],
              [0,0,0,0,0,0,0,0,0]
            ]
    return board

def printBoard():
    for i in drawBoard():
        for a in i:
            print a,
        print "\n"

printBoard()

输出:

0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 

0 0 0 0 3 2 1 0 0 

0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 

感谢您的帮助。

Answer 1

使用join()，不要依赖于, 进行格式化，而且print 会自动将光标放在换行符上时间，因此无需在您的 print 中添加另一个 '\n'。

In [24]: for x in board:
    print " ".join(map(str,x))
   ....:     
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 3 2 1 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0