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我正在使用writeexcel
創業板。無法添加圖表到Excel工作簿
以下是我的代碼片段:
workbook = WriteExcel.new("graphTest.xls")
worksheet = workbook.add_worksheet(sheetname = "Test")
chart = workbook.add_chart(
:type => "Chart::column",
:name => "Chart",
:embedded => 1
)
,我得到以下錯誤:
undefined method `new' for nil:NilClass (NoMethodError)
完整的錯誤:
/Users/guy/.rvm/gems/ruby-2.3.0/gems/writeexcel-1.0.5/lib/writeexcel/chart.rb
:79:in 'factory': undefined method 'new' for nil:NilClass (NoMethodError)
from /Users/guy/.rvm/gems/ruby-2.3.0/gems/writeexcel-1.0.5/lib/writee
xcel/workbook.rb:334:in 'add_chart'
from excelGraph.rb:18:in '<main>'
爲什麼我收到如果此錯誤信息我直接從寶石文檔here發現一個例子嗎?
這裏的示例代碼https://github.com/ cxn03651/writeexcel工作,只是測試。 – JLB
上面提到的圖表示例可以在這裏找到(https://github.com/cxn03651/writeexcel/tree/master/examples)。 – EVAL