Question

当尝试从Elm教程编译Pong时，我收到错误＆＃34;找不到变量Text.color＆＃34;

textGreen = rgb 160 200 160
txt f = leftAligned << f << monospace << Text.color textGreen << toText
msg = "SPACE to start, WS and &uarr;&darr; to move"

错误是指我尝试设置Text.color时提供的第二行。提前感谢您提供的任何帮助。

Answer 1

你导入了Text吗？ import Text，您列出的代码将编译。

您的txt功能真的是您期望的类型吗？

> txt f = leftAligned << f << monospace << Text.color textGreen << toText`
<function> : (Text.Text -> Text.Text) -> String -> Graphics.Element.Element

如果是这样，这将编译并运行：

import Text             exposing (monospace, fromString)
import Color            exposing (rgb)
import Graphics.Element exposing (leftAligned)

textGreen = rgb 160 200 160
txt f = leftAligned << f 
                    << monospace 
                    << Text.color textGreen 
                    << fromString
msg = "SPACE to start, WS and &uarr;&darr; to move"

main = txt identity msg

找不到Variable Text.Color

1 个答案: