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½â¾ö·½°¸ÈçÏÂÀý：

 List<String> list = Arrays.asList("Àî˼˼", "ËÎÔ²Ô²", "ËÕСС");
          String str = String.join(",", list);
          System.out.println("½á¹û:============¡·¡·¡·¡·¡·¡·"+str);