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javascript 基本

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仕様

click を押すとボタンがでる


 <div id="root2" onclick="change()"> click</div>
                <div id = "root" style="display:none">
                  <button type="">クリック</button>
                </div>


function change(){
var aaa =  document.getElementById("root");
  aaa.style.display = "block"

}
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