String 转 byte[] 指定位址问题 ?

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public class Byte {
 
  static byte[] buffer = new byte[100];
  static String str = "一二三四五";
  
  public static void main(String[] args) {
    
  buffer = str.getBytes(); // String to byte[]
  System.out.println(new String(buffer)); // byte[] to String
 
  }
}

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一二三四五