向ruby循環中的數組添加對象將最新對象保留到所有數組項目

Question

下面的代碼演示了一個ruby（1.8.7）for循環，其中從excel讀入的列和標題被保存爲對象（object attributes：header = string，contents =字符串數組）。當我在幾列閱讀時，我想將它們保存爲一組對象。

問題是每個循環在增加數組'矩陣'的同時，成功地存儲新對象，似乎用最新的對象覆蓋矩陣數組的前幾個元素。當我迭代完成的數組時，我只是得到同一個對象的x個實例。

column_count = count_columns(worksheet) 
    row_count = count_rows(worksheet) 

    matrix = Array.new 
    #i don't think header needs to be an array in the below loop, but anyway... 
    header = Array.new 
    contents = Array.new 

    for column in 0..column_count - 1 
    header[column] = worksheet.Cells(1, column + 2).Value 
    for row in 0..row_count 
     contents[row] = worksheet.Cells(row + 2, column + 2).Value 
    end 
    matrix[column] = Worksheet_Column.new(header[column], contents) 
    end 


    #looping after the array was created puts the same information in each iteration 
    for column in 0..matrix.length - 1 
    puts "loop = #{column}" 

    puts matrix[column] 
    end 

Answer 1

嗯，我還沒有看到基本的錯誤允許哪些內容向後寫，但已經注意到發生了內容的問題，而不是頁眉這一解決方案已經成功。

for column in 0..column_count - 1 
    contents[column] = Array.new 
    header[column] = worksheet.Cells(1, column + 2).Value 
    for row in 0..row_count 
    contents[column][row] = worksheet.Cells(row + 2, column + 2).Value 
    end 
    matrix[column] = Worksheet_Column.new(header[column], contents[column]) 
end