foldLeft与foldRight是特质TraversableOnce定义的高阶函数,直译过来为向左折叠和向右折叠。具体实现如下摘出的代码所示:
trait TraversableOnce[A] extends Any with GenTraversableOnce[A] {deprecated("Use foldLeft instead of /:", &quo…
详细问题描述
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this prob…