以下不可以实现深拷贝数据的有 ? A、object.assign({}, {a: 1}) B、{...{a:1}} C、JSON.parse (JSON.stringify({a:1})) D、[1,2,3].slice() let test ={a:1}; console.log(test); //{a:1} let one = Object.assign({}, test); let two = {...test}; let three = JSON.parse (JSON.stringify(test)); console.log("1...