// function connect({host,port,username,password}){       //   console.log(host);       //   console.log(port);       //   console.log(username);       //   console.log(password);       // }

      // function connect({host,port,...user}){       //   console.log(host);       //   console.log(port);       //   console.log(user);        // }
      // connect({       //   host:'127.0.0.1',       //   port:3306,       //   username:'root',       //   password:'password',       //   type:'master'       // })
      const skillOne = {         q:'天音波'        }
      const skillTwo = {          w:'金钟罩'       }
      const skillThree = {          e:'天雷破'       }
      const skillFour = {         r:'猛龙摆尾'       }
      // ...skillOne => q:'天音波'
      const mangseng = {         ...skillOne,         ...skillTwo,          ...skillThree,          ...skillFour       };
      console.log(mangseng); // {q: "天音波", w: "金钟罩", e: "天雷破", r: "猛龙摆尾"}