title: How to put the element of a list to another list directly?
body: <p>I have several dictionaries( <code>Class1 , Class2</code>) , and one element of the dictionary stores a list (<code>Score</code>) , I want to put the element of the list into another list , but not the list itself to another list .</p>
  
  <p>I try the following code </p>
  
  <pre><code>All = []
  Class1 = {"name":"A","score":[60,70,80]}
  Class2 = {"naem":"B","score":[70,80,90]}
  All.append(Class1['score'])
  All.append(Class2['score'])
  print(All)
  </code></pre>
  
  <p>but the result is</p>
  
  <pre><code>[[60, 70, 80], [70, 80, 90]]
  </code></pre>
  
  <p>but what I want is </p>
  
  <pre><code>[60, 70, 80, 70, 80, 90]
  </code></pre>
  
  <p>I try this solution below , but I want to know does there exists better solution?</p>
  
  <pre><code>All = []
  Class1 = {"name":"A","score":[60,70,80]}
  Class2 = {"naem":"B","score":[70,80,90]}
  
  Scores1 = Class1['score']
  Scores2 = Class2['score']
  
  Scores = Scores1 + Scores2
  for score in Scores:
      All.append(score)
  
  print(All)
  </code></pre>
  
  <p>thanks</p>