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  首尾和:是指第一位号码加最后一位号码的和值。
  首尾和大小:小数(7-33) 大数(34-61)
  首尾和奇偶:奇数(7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61) 偶数(8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60)
  首尾和质合:质数(7,11,13,17,19,23,29,31,37,41,43,47,53,59,61) 合数(8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58,60)
  首尾和大中小:小数(7-24) 中数(25-42) 大数(43-61)
  首尾和除3余数:0(9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60) 1(7,10,13,16,19,22,25,28,31,34,37,40,43,46,49,52,55,58,61) 2(8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,56,59) 
  首尾和除4余数:0(8,12,16,20,24,28,32,36,40,44,48,52,56,60) 1(9,13,17,21,25,29,33,37,41,45,49,53,57,61) 2(10,14,18,22,26,30,34,38,42,46,50,54,58) 3(7,11,15,19,23,27,31,35,39,43,47,51,55,59) 
  首尾和除5余数:0(10,15,20,25,30,35,40,45,50,55,60) 1(11,16,21,26,31,36,41,46,51,56,61) 2(7,12,17,22,27,32,37,42,47,52,57) 3(8,13,18,23,28,33,38,43,48,53,58) 4(9,14,19,24,29,34,39,44,49,54,59) 
  首尾和除6余数:0(12,18,24,30,36,42,48,54,60) 1(7,13,19,25,31,37,43,49,55,61) 2(8,14,20,26,32,38,44,50,56) 3(9,15,21,27,33,39,45,51,57) 4(10,16,22,28,34,40,46,52,58) 5(11,17,23,29,35,41,47,53,59) 
  首尾和除7余数:0(7,14,21,28,35,42,49,56) 1(8,15,22,29,36,43,50,57) 2(9,16,23,30,37,44,51,58) 3(10,17,24,31,38,45,52,59) 4(11,18,25,32,39,46,53,60) 5(12,19,26,33,40,47,54,61) 6(13,20,27,34,41,48,55) 
  首尾和除8余数:0(8,16,24,32,40,48,56) 1(9,17,25,33,41,49,57) 2(10,18,26,34,42,50,58) 3(11,19,27,35,43,51,59) 4(12,20,28,36,44,52,60) 5(13,21,29,37,45,53,61) 6(14,22,30,38,46,54) 7(7,15,23,31,39,47,55) 
  首尾和除9余数:0(9,18,27,36,45,54) 1(10,19,28,37,46,55) 2(11,20,29,38,47,56) 3(12,21,30,39,48,57) 4(13,22,31,40,49,58) 5(14,23,32,41,50,59) 6(15,24,33,42,51,60) 7(7,16,25,34,43,52,61) 8(8,17,26,35,44,53) 
  首尾和3分区:3分区1(7-24) 3分区2(25-42) 3分区3(43-61) 
  首尾和4分区:4分区1(7-20) 4分区2(21-34) 4分区3(35-48) 4分区4(49-61) 
  首尾和5分区:5分区1(7-17) 5分区2(18-28) 5分区3(29-39) 5分区4(40-50) 5分区5(51-61) 
  首尾和6分区:6分区1(7-15) 6分区2(16-24) 6分区3(25-33) 6分区4(34-42) 6分区5(43-51) 6分区6(52-61) 
  首尾和7分区:7分区1(7-14) 7分区2(15-22) 7分区3(23-30) 7分区4(31-38) 7分区5(39-46) 7分区6(47-54) 7分区7(55-61) 
  首尾和8分区:8分区1(7-13) 8分区2(14-20) 8分区3(21-27) 8分区4(28-34) 8分区5(35-41) 8分区6(42-48) 8分区7(49-55) 8分区8(56-61) 
  首尾和9分区:9分区1(7-12) 9分区2(13-18) 9分区3(19-24) 9分区4(25-30) 9分区5(31-36) 9分区6(37-42) 9分区7(43-48) 9分区8(49-54) 9分区9(55-61) 
  首尾和升平降:本期首尾和大于上期首尾和称为升,与上期相同称为平,小于上期称为降。
  首尾和振幅:本期首尾和与上期首尾和差值的绝对值。