w

open override fun w(message: String?, vararg args: Any?)

记录警告级别日志消息（可包含格式参数）

Log a warning message with optional format args.

open override fun w(t: Throwable?, message: String?, vararg args: Any?)

记录警告级别异常和消息（可包含格式参数）

Log a warning exception and a message with optional format args.

open override fun w(t: Throwable?)

记录警告级别异常

Log a warning exception.