<p>我用python做了一个网格,可以打印出来。
它可以正确地显示序列或列和行。但是,当我想更改网格中的某个元素时,它似乎会将其添加到列表中,而不是替换所需的索引。
代码如下:</p>
<pre><code>empty = "X"
wall = "O"
rows = 20
columns = 40
grid = ""
def GetIndexFromPosition(x,y):
index = 0
for i in range(0,y):
index += (columns)
index += x
print(index)
return index
for i in range(0,rows):
row = ""
for i in range(0,columns):
row += empty
grid += """
""" + row
l = list(grid)
l[GetIndexFromPosition(0,0)] = wall
grid = "".join(l)
print(grid)
</code></pre>
<p>网格应该保持在40×20的屏幕上,而不是我更改的21个单位长的行</p>
<p>GetIndexFromPosition函数不计算换行符
在网格字符串中插入的元素</p>
<p>修正了换行函数:</p>
<pre><code>def GetIndexFromPosition(x,y):
index = 1
for i in range(0,y):
index += (columns + 1)
index += x
print(index)
return index
</code></pre>