code: public static boolean isEmptyAnd(String... strings) {
          if (isNotNull(strings)) {
              for (String string : strings) {
                  if (isNotEmpty(string)) {
                      return false;
                  }
              }
          }
          return true;
      }
docs: 是否全部为空
  
  @param strings 字符串数组
  
  @return {@link Boolean}
  
  @since 1.1.0