4回答

• 

  慕粉1845511388

  2017-03-22 15:43:58

  已采纳

  var yan = maychar.style.width="300px";       是mychar,多了a.

  1 0

  qq_手揣口...

  尴尬了，谢谢！

  2017-03-22 15:44:50

  共 1 条回复 >

• 

  qq_慕神1420022

  2022-03-31 10:20:08

  大神也都当过菜鸟，加油

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  0 0
• 

  qq_手揣口袋丶只爱你_0

  2017-03-22 15:37:19

  一样的

  undefined

  啊，这我试过了的

  0 0
• 

  WJPJW

  2017-03-22 15:34:37

  var mychar= document.getElementById("con");
      mychar.style.color="red";
      mychar.style.backgroundColor="#ccc";
      mychar.style.display="block";
      var yan = maychar.style.width="300";
      function tan(){
          alert(yan);
      }

  
  

  1 0

  qq_手揣口...

  一样的 undefined 啊，这我试过了的

  2017-03-22 15:37:37

  共 1 条回复 >