[英]Smalltalk How to Fill 2d array with random numbers?
您可以使用Matrix
並將其創建為:
| random |
random := Random new.
^ Matrix
rows: rowNumber
columns: columnNumber
tabulate: [ :i :j | random next ]
其中i和j是元素的索引(我在示例中沒有使用)
如果你真的想用2d數組做一些事我建議你做這樣的事情:
| random |
random := Random new.
^ (1 to: rowNumber) collect: [ :i |
(1 to: columnNumber) collect: [ :j |
random next ]
您還可以在創建后遍歷矩陣:
| random matrix |
random := Random new.
matrix := Matrix rows: rowNumber columns: columnNumber.
martix indicesCollect: [ :i :j | random next ].
^ matrix
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