Question

我正在运行Windows + Ruby2.3并且正在弄乱tk库。我试图让它绘制一个不同颜色的矩形网格，但每当我尝试向画布添加一个形状时，我的脚本就会崩溃。这是代码的精简版本：

require 'tk'
require 'tkextlib/tile'
root = TkRoot.new
content = Tk::Tile::Frame.new(root)
canvas = TkCanvas.new(content)
line = TkcLine.new( canvas, 0, 0, 10, 10, :fill => 'red' )
Tk.mainloop

然而，当我运行它时，我得到以下错误+回溯：

C:/Ruby23/lib/ruby/2.3.0/tk/itemconfig.rb:115:in `hash_kv': wrong argument type nil (expected Array) (TypeError)
        from C:/Ruby23/lib/ruby/2.3.0/tk/itemconfig.rb:115:in `itemconfig_hash_kv'
        from C:/Ruby23/lib/ruby/2.3.0/tk/canvas.rb:722:in `_parse_create_args'
        from C:/Ruby23/lib/ruby/2.3.0/tk/canvas.rb:735:in `create'
        from C:/Ruby23/lib/ruby/2.3.0/tk/canvas.rb:758:in `create_self'
        from C:/Ruby23/lib/ruby/2.3.0/tk/canvas.rb:751:in `initialize'
        from C:/nopathforyou.rb:9:in `new'
        from C:/nopathforyou.rb:9:in `<main>'

任何人都知道怎么办？提前谢谢。

Answer 1

我遇到了同样的错误，我最后通过添加以下代码解决了这个问题：

module TkItemConfigOptkeys
    def itemconfig_hash_kv(id, keys, enc_mode = [], conf = [])
        hash_kv(__conv_item_keyonly_opts(id, keys), enc_mode, conf)
    end
end

应该在'require'语句之后，比如说，你的代码应该是：

require 'tk'
require 'tkextlib/tile'
module TkItemConfigOptkeys
  def itemconfig_hash_kv(id, keys, enc_mode = [], conf = [])
    hash_kv(__conv_item_keyonly_opts(id, keys), enc_mode, conf)
  end
end
root = TkRoot.new
content = Tk::Tile::Frame.new(root)
canvas = TkCanvas.new(content)
line = TkcLine.new( canvas, 0, 0, 10, 10, :fill => 'red' )
Tk.mainloop

抱歉我的英文。

添加之后，我的代码运行正常。

Ruby + Tk的帆布和形状都在喋喋不休

1 个答案: