https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/

90天之後再輸入slmgr -rearm重新取得授權

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remove eclipse folder and folowings:
~/.eclipse (folder);
~/Library/Saved Application/org.eclipse.eclipse.savedState;
~/Library/Preferences/org.eclipse.eclipse.plist;
~/Library/Caches/org.eclipse.eclipse;
… and of course the eclipse install folder

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sudo rm -rf /Library/Java/JavaVirtualMachines/jdk<version>.jdk
sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefPane
sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin

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安裝

homebrew會裝到/usr/local/

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ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

指令

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 #homebrew檢查
brew doctor
 #homebrew更新
brew update
 #列出安裝的module
brew list

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 #module會裝到/usr/local/opt/xxx
 #安裝xxx模組
brew install xxx
brew uninstall xxx
 #更新xxx模組
brew upgrade xxx
 #homebrew在執行upgrade後不會自動將舊版本刪掉[避免某些軟體用絕對路徑相依導致不能使用]，需要手動執行以下
 #列出cleanup會刪除的formula
brew cleanup -n
 #刪除舊版本
brew cleanup [xxx]

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