1.直接打開某類:ctrl+shift+t2.註釋某類:ctrl+?3. implementation :Ctrl+T4.rename:Alt +Shirft +R5.Show Intention Actions:Alt+Enter6.搜索方法被調用:Ctrl+G7.自動導入包 alt+Enter8.Alt+回車 導入包,自動修正9.Alt+Insert 生成代碼(如get,set方法,構造函數等)函數