在输入sudo apt-get update后发现终端提示：

   
   


     
     
      
      
     
     
     
     
      
      
       
       E: 无法获得锁 /var/lib/dpkg/lock-frontend - open (11: 资源暂时不可用)
      
      
     
     
    

     
     
      
      
     
     
     
     
      
      
       
       E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
      
      
     
     
   

• 解决方案一：

ps