[英](Python) Tuple/List Assignment
Currently to assign my variables, I have this: 目前要分配我的变量,我有这个:
rows = [[convert[random.randint(0,7)] for _ in range(5)] for _ in range(5)]
printedrows = [("[X]","[X]","[X]","[X]","[X]"," <- V: {} TOTAL: {}".format(row.count(0), sum(row))) for row in rows]
This creates 5 rows with random values: 这将创建5个具有随机值的行:
('[X]', '[X]', '[X]', '[X]', '[X]', ' <- V: 1 TOTAL: 9')
('[X]', '[X]', '[X]', '[X]', '[X]', ' <- V: 2 TOTAL: 5')
('[X]', '[X]', '[X]', '[X]', '[X]', ' <- V: 0 TOTAL: 6')
('[X]', '[X]', '[X]', '[X]', '[X]', ' <- V: 1 TOTAL: 10')
('[X]', '[X]', '[X]', '[X]', '[X]', ' <- V: 0 TOTAL: 8')
I would like to reassign the "X"s to numbers so it reads something like: 我想将“ X”重新分配给数字,以便其显示为:
('[X]', '[2]', '[X]', '[X]', '[X]', ' <- V: 1 TOTAL: 9')
('[1]', '[X]', '[3]', '[0]', '[1]', ' <- V: 2 TOTAL: 5')
('[X]', '[X]', '[1]', '[X]', '[X]', ' <- V: 0 TOTAL: 6')
('[1]', '[X]', '[X]', '[X]', '[2]', ' <- V: 1 TOTAL: 10')
('[X]', '[3]', '[X]', '[2]', '[X]', ' <- V: 0 TOTAL: 8')
However, when I use this: (example only - the location is user-determined) 但是,当我使用此命令时:(仅作为示例-位置由用户确定)
convert = {0:0,1:1,2:2,3:3,4:0,5:1,6:2,7:1}
printedrows[y][x] = rows[y][x]
TypeError: 'tuple' object does not support item assignment
Is there something I can do to fix this so that I can change the values without the error? 我可以做些什么来解决此问题,以便我可以更改值而不会出现错误? Thanks.
谢谢。
You are creating a list with tuples: 您正在使用元组创建列表:
printedrows = [("[X]","[X]","[X]","[X]","[X]"," <- V: {} TOTAL: {}".format(row.count(0), sum(row)))
for row in rows]
You can make those lists instead: 您可以改为列出这些列表:
printedrows = [["[X]","[X]","[X]","[X]","[X]"," <- V: {} TOTAL: {}".format(row.count(0), sum(row))]
for row in rows]
Note the square brackets as opposed to the round parenthesis there. 注意方括号,而不是那里的圆括号。
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