2回答

• 

  岁月安好3318186

  2016-12-26 22:09:33

  已采纳

  应该是可以变短的

  var arr=new Array(6);

  var arr=["1","2","3","4","5","0"];

  console.log(arr.length);//6

  var arr= arr.slice(1,2);

  console.log(arr.length);//1

  有不对的 还请指教

  1 0

  Mr丶Jia

  非常感谢！

  2016-12-26 22:15:41

  共 1 条回复 >

• 

  fhq0

  2016-12-26 21:24:44

  不可以吧

  0 0