[已解决]求解！原生js创建select后打印不出来

qpwoeiruyt · 发表于 2021-4-21 20:19:36

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<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>1</title>
</head>

<body>
<div id="mm">
      <script>
         var select_d = document.createElement("select");
         select_d.id = "select_d";
         select_d.style.width = "200px";
         select_d.style.height = "50px";
         select_d.style.borderRadius = "10px";
         select_d.style.position = "absolute";
         select_d.style.top = "130px";
         select_d.style.left = "65px";
         select_d.style.display = "block";

         var op1 = document.createElement("option");
         op1.value = "Choose the dimension ";
         op1.innerText = "Choose the dimension ";
         select_d.appendChild(op1);
         var op2 = document.createElement("option");
         op2.value = "M1";
         op2.innerText = "M1";
         select_d.appendChild(op2);
         mm.appendChild(select_d);

         var obj = document.getElementById("Select_d");
         console.log(select_d);  //可以打印
         console.log(obj); //打印不出来 null
      </script>
</div>
</body>

最佳答案

月排行榜 / 总排行榜

肖-肖

2021-4-21 20:23:35

var obj = document.getElementById("Select_d");
改为
var obj = document.getElementById("select_d");
试试吧
你上面建的是小写的

跳转到最佳答案楼层

肖-肖 · 发表于 2021-4-21 20:23:35

var obj = document.getElementById("Select_d");
改为
var obj = document.getElementById("select_d");
试试吧
你上面建的是小写的

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[已解决]求解！原生js创建select后 打印不出来

马上注册，结交更多好友，享用更多功能^_^

[已解决]求解！原生js创建select后打印不出来