...mapState({
        capsuleInfo: state => state.userState.capsuleInfo,
        toRPxs: state => state.appData.toRPxs,
        screenHeight: state => state.appData.height,
        homePageData: state => state.userState.homePageData,
        user_id: state => state.user.user_id,
        userInfo: state => state.userState.userInfo,
        })

其中...代表的三点运算符
1.对象的扩展运算符

 let  num = { a:1 , b:2}  
 let  num2 = {...num}  // let num2 = {a:1 , b:2}

2.数组的扩展运算符

  function add(x, y) {
  return x + y;
  }

  const numbers = [4, 38];
  add(...numbers) // 42