/**
     * 將陣列轉換成以逗號分隔的字串
     * 
     * @param needChange
     *            需要轉換的陣列
     * @return 以逗號分割的字串
     */
    public static String arrayToStrWithComma(String[] needChange) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < needChange.length; i++) {
            sb.append(needChange[i]);
            if
 
 ((i + 1) != needChange.length) {
                sb.append(",");
            }
        }
        return sb.toString();
    }