小编Suy*_*yog的帖子

function myFunction() {
  var copyText = document.getElementById("myInput");
  copyText.select();
  document.execCommand("Copy");
  alert("Copied the text: " + copyText.value);
}

<pre id="myInput">
    <span style="color:#97EDDC;">class </span>first
    {
    	<span style="color:#97EDDC;">public</span> <span style="color:#97EDDC;">static </span> <span style="color:#97EDDC;">void </span> main(String args[]) // here S is capital of String word
    	{
    		System.out.println("Hello World!!"); // here S is capital of System word
    	}
    }
</pre>