CodeBlocks中“Target is up to date.Nothing to be done.”是什么意思?

CodeBlocks中“Target is up to date.Nothing to be done.”是什么意思? 请问codeblocks 显示nothing to be done 为什么我用codeblocks不能运行编好 Nothing to be done (all items are up-t up to date是什么意思 turboc2中is up to date There is nothing to do 和There is nothing to be done有什么不一样吗? 英语翻译These is nothing to do now.There is nothing to be done n to be done是什么意思? Table is already up to date 这是什么意思 be up to date的意思? Table is already up to date need to be done.是什么意思?