code: public static String getWeekAsChinese(String date) throws ParseException, Exception {
          return getWeekAsChinese(Formatter.stringToDate(date));
      }
docs: 计算日期为星期几
  
  @param date 日期
  
  @return 格式为“星期？”的字符串
  
  @throws ParseException 异常
  @throws Exception 异常